This is pdfeTeX, Version 3.141592-1.30.5-2.2 (Web2C 7.5.5) (format=pdflatex 2008.3.14) 1 APR 2008 01:23 entering extended mode **eser.tex (./eser.tex LaTeX2e <2003/12/01> Babel and hyphenation patterns for american, french, german, ngerman, b ahasa, basque, bulgarian, catalan, croatian, czech, danish, dutch, esperanto, e stonian, finnish, greek, icelandic, irish, italian, latin, magyar, norsk, polis h, portuges, romanian, russian, serbian, slovak, slovene, spanish, swedish, tur kish, ukrainian, nohyphenation, loaded. ! Undefined control sequence. l.1 \section {Esercizi} The control sequence at the end of the top line of your error message was never \def'ed. If you have misspelled it (e.g., `\hobx'), type `I' and the correct spelling (e.g., `I\hbox'). Otherwise just continue, and I'll forget about whatever was undefined. ! LaTeX Error: Missing \begin{document}. See the LaTeX manual or LaTeX Companion for explanation. Type H for immediate help. ... l.1 \section{E sercizi} You're in trouble here. Try typing to proceed. If that doesn't work, type X to quit. Missing character: There is no E in font nullfont! Missing character: There is no s in font nullfont! Missing character: There is no e in font nullfont! Missing character: There is no r in font nullfont! Missing character: There is no c in font nullfont! Missing character: There is no i in font nullfont! Missing character: There is no z in font nullfont! Missing character: There is no i in font nullfont! ! LaTeX Error: Environment exemp undefined. See the LaTeX manual or LaTeX Companion for explanation. Type H for immediate help. ... l.3 \begin{exemp} Your command was ignored. Type I to replace it with another command, or to continue without it. Missing character: There is no I in font nullfont! Missing character: There is no n in font nullfont! LaTeX Font Info: External font `cmex10' loaded for size (Font) <7> on input line 4. LaTeX Font Info: External font `cmex10' loaded for size (Font) <5> on input line 4. ! Undefined control sequence. \A l.4 In $\A ^5(\mathbb{R})$ sono assegnati i seguenti punti: The control sequence at the end of the top line of your error message was never \def'ed. If you have misspelled it (e.g., `\hobx'), type `I' and the correct spelling (e.g., `I\hbox'). Otherwise just continue, and I'll forget about whatever was undefined. ! Undefined control sequence. l.4 In $\A^5(\mathbb {R})$ sono assegnati i seguenti punti: The control sequence at the end of the top line of your error message was never \def'ed. If you have misspelled it (e.g., `\hobx'), type `I' and the correct spelling (e.g., `I\hbox'). Otherwise just continue, and I'll forget about whatever was undefined. Missing character: There is no s in font nullfont! Missing character: There is no o in font nullfont! Missing character: There is no n in font nullfont! Missing character: There is no o in font nullfont! Missing character: There is no a in font nullfont! Missing character: There is no s in font nullfont! Missing character: There is no s in font nullfont! Missing character: There is no e in font nullfont! Missing character: There is no g in font nullfont! Missing character: There is no n in font nullfont! Missing character: There is no a in font nullfont! Missing character: There is no t in font nullfont! Missing character: There is no i in font nullfont! Missing character: There is no i in font nullfont! Missing character: There is no s in font nullfont! Missing character: There is no e in font nullfont! Missing character: There is no g in font nullfont! Missing character: There is no u in font nullfont! Missing character: There is no e in font nullfont! Missing character: There is no n in font nullfont! Missing character: There is no t in font nullfont! Missing character: There is no i in font nullfont! Missing character: There is no p in font nullfont! Missing character: There is no u in font nullfont! Missing character: There is no n in font nullfont! Missing character: There is no t in font nullfont! Missing character: There is no i in font nullfont! Missing character: There is no : in font nullfont! ! Undefined control sequence. l.5 \eal { The control sequence at the end of the top line of your error message was never \def'ed. If you have misspelled it (e.g., `\hobx'), type `I' and the correct spelling (e.g., `I\hbox'). Otherwise just continue, and I'll forget about whatever was undefined. ! Misplaced alignment tab character &. l.6 & A_1=(1,1,0,0,0)\\ I can't figure out why you would want to use a tab mark here. If you just want an ampersand, the remedy is simple: Just type `I\&' now. But if some right brace up above has ended a previous alignment prematurely, you're probably due for more error messages, and you might try typing `S' now just to see what is salvageable. Missing character: There is no A in font nullfont! ! Missing $ inserted. $ l.6 &A_ 1=(1,1,0,0,0)\\ I've inserted a begin-math/end-math symbol since I think you left one out. Proceed, with fingers crossed. ! Misplaced alignment tab character &. & l.7 & A_2=(0,0,0,-1,0)\\ I can't figure out why you would want to use a tab mark here. If you just want an ampersand, the remedy is simple: Just type `I\&' now. But if some right brace up above has ended a previous alignment prematurely, you're probably due for more error messages, and you might try typing `S' now just to see what is salvageable. ! Misplaced alignment tab character &. & l.8 & A_3=(0,2,0,1,0)\\ I can't figure out why you would want to use a tab mark here. If you just want an ampersand, the remedy is simple: Just type `I\&' now. But if some right brace up above has ended a previous alignment prematurely, you're probably due for more error messages, and you might try typing `S' now just to see what is salvageable. ! Misplaced alignment tab character &. & l.9 & A_4=(0,-1,0,-2,2) I can't figure out why you would want to use a tab mark here. If you just want an ampersand, the remedy is simple: Just type `I\&' now. But if some right brace up above has ended a previous alignment prematurely, you're probably due for more error messages, and you might try typing `S' now just to see what is salvageable. ! Extra }, or forgotten $. l.10 } I've deleted a group-closing symbol because it seems to be spurious, as in `$x}$'. But perhaps the } is legitimate and you forgot something else, as in `\hbox{$x}'. In such cases the way to recover is to insert both the forgotten and the deleted material, e.g., by typing `I$}'. Missing character: There is no T in font nullfont! ! LaTeX Error: Environment prova undefined. See the LaTeX manual or LaTeX Companion for explanation. Type H for immediate help. ... l.12 \begin{prova} Your command was ignored. Type I to replace it with another command, or to continue without it. ! Undefined control sequence. l.13 \step {}{Trova per quali valori di $a$ e $b$ i seguenti punti The control sequence at the end of the top line of your error message was never \def'ed. If you have misspelled it (e.g., `\hobx'), type `I' and the correct spelling (e.g., `I\hbox'). Otherwise just continue, and I'll forget about whatever was undefined. ! Missing } inserted. } l.13 \step{}{Trova per quali valori di $ a$ e $b$ i seguenti punti I've inserted something that you may have forgotten. (See the above.) With luck, this will get me unwedged. But if you really didn't forget anything, try typing `2' now; then my insertion and my current dilemma will both disappear. ! Missing \endgroup inserted. \endgroup l.13 \step{}{Trova per quali valori di $ a$ e $b$ i seguenti punti I've inserted something that you may have forgotten. (See the above.) With luck, this will get me unwedged. But if you really didn't forget anything, try typing `2' now; then my insertion and my current dilemma will both disappear. Missing character: There is no a in font nullfont! Missing character: There is no b in font nullfont! Missing character: There is no T in font nullfont! ! Undefined control sequence. l.15 \eal { The control sequence at the end of the top line of your error message was never \def'ed. If you have misspelled it (e.g., `\hobx'), type `I' and the correct spelling (e.g., `I\hbox'). Otherwise just continue, and I'll forget about whatever was undefined. ! Misplaced alignment tab character &. l.16 & B_1=(0,4,3,2,0)\\ I can't figure out why you would want to use a tab mark here. If you just want an ampersand, the remedy is simple: Just type `I\&' now. But if some right brace up above has ended a previous alignment prematurely, you're probably due for more error messages, and you might try typing `S' now just to see what is salvageable. ! Misplaced alignment tab character &. & l.17 & B_2=(0,4,b,2,1)\\ I can't figure out why you would want to use a tab mark here. If you just want an ampersand, the remedy is simple: Just type `I\&' now. But if some right brace up above has ended a previous alignment prematurely, you're probably due for more error messages, and you might try typing `S' now just to see what is salvageable. ! Misplaced alignment tab character &. & l.18 & B_3=(a,4,3,2,1) I can't figure out why you would want to use a tab mark here. If you just want an ampersand, the remedy is simple: Just type `I\&' now. But if some right brace up above has ended a previous alignment prematurely, you're probably due for more error messages, and you might try typing `S' now just to see what is salvageable. ! Extra }, or forgotten $. l.19 }} I've deleted a group-closing symbol because it seems to be spurious, as in `$x}$'. But perhaps the } is legitimate and you forgot something else, as in `\hbox{$x}'. In such cases the way to recover is to insert both the forgotten and the deleted material, e.g., by typing `I$}'. ! LaTeX Error: Environment prova undefined. See the LaTeX manual or LaTeX Companion for explanation. Type H for immediate help. ... l.20 \begin{prova} Your command was ignored. Type I to replace it with another command, or to continue without it. ! Undefined control sequence. l.21 \eal {&T=(A_1,W),\;\;W=\Ll{ \vec{A_1A_2}, \vec{A_1A_3}, \vec{A_1A_3}}\\ The control sequence at the end of the top line of your error message was never \def'ed. If you have misspelled it (e.g., `\hobx'), type `I' and the correct spelling (e.g., `I\hbox'). Otherwise just continue, and I'll forget about whatever was undefined. ! Misplaced alignment tab character &. l.21 \eal{& T=(A_1,W),\;\;W=\Ll{ \vec{A_1A_2}, \vec{A_1A_3}, \vec{A_1A_3}}\\ I can't figure out why you would want to use a tab mark here. If you just want an ampersand, the remedy is simple: Just type `I\&' now. But if some right brace up above has ended a previous alignment prematurely, you're probably due for more error messages, and you might try typing `S' now just to see what is salvageable. ! Undefined control sequence. l.21 \eal{&T=(A_1,W),\;\;W=\Ll { \vec{A_1A_2}, \vec{A_1A_3}, \vec{A_1A_3}}\\ The control sequence at the end of the top line of your error message was never \def'ed. If you have misspelled it (e.g., `\hobx'), type `I' and the correct spelling (e.g., `I\hbox'). Otherwise just continue, and I'll forget about whatever was undefined. ! Misplaced alignment tab character &. & l.22 & \vec{A_1A_2}=A_2-A_1=(-1, -1, 0, -1, 0)\\ I can't figure out why you would want to use a tab mark here. If you just want an ampersand, the remedy is simple: Just type `I\&' now. But if some right brace up above has ended a previous alignment prematurely, you're probably due for more error messages, and you might try typing `S' now just to see what is salvageable. ! Misplaced alignment tab character &. & l.23 & \vec{A_1A_3}=A_3-A_1=(-1, 1, 0, 1, 0)\\ I can't figure out why you would want to use a tab mark here. If you just want an ampersand, the remedy is simple: Just type `I\&' now. But if some right brace up above has ended a previous alignment prematurely, you're probably due for more error messages, and you might try typing `S' now just to see what is salvageable. ! Misplaced alignment tab character &. & l.24 & \vec{A_1A_4}=A_4-A_1=(-1, -2, 0, -2, 2)\\ I can't figure out why you would want to use a tab mark here. If you just want an ampersand, the remedy is simple: Just type `I\&' now. But if some right brace up above has ended a previous alignment prematurely, you're probably due for more error messages, and you might try typing `S' now just to see what is salvageable. ! Misplaced alignment tab character &. & l.25 & \\ I can't figure out why you would want to use a tab mark here. If you just want an ampersand, the remedy is simple: Just type `I\&' now. But if some right brace up above has ended a previous alignment prematurely, you're probably due for more error messages, and you might try typing `S' now just to see what is salvageable. ! Misplaced alignment tab character &. & l.26 & \begin{vmatrix} I can't figure out why you would want to use a tab mark here. If you just want an ampersand, the remedy is simple: Just type `I\&' now. But if some right brace up above has ended a previous alignment prematurely, you're probably due for more error messages, and you might try typing `S' now just to see what is salvageable. ! LaTeX Error: Environment vmatrix undefined. See the LaTeX manual or LaTeX Companion for explanation. Type H for immediate help. ... l.26 &\begin{vmatrix} Your command was ignored. Type I to replace it with another command, or to continue without it. ! Misplaced alignment tab character &. l.27 -1& -1& 0\\ I can't figure out why you would want to use a tab mark here. If you just want an ampersand, the remedy is simple: Just type `I\&' now. But if some right brace up above has ended a previous alignment prematurely, you're probably due for more error messages, and you might try typing `S' now just to see what is salvageable. ! Misplaced alignment tab character &. l.27 -1& -1& 0\\ I can't figure out why you would want to use a tab mark here. If you just want an ampersand, the remedy is simple: Just type `I\&' now. But if some right brace up above has ended a previous alignment prematurely, you're probably due for more error messages, and you might try typing `S' now just to see what is salvageable. ! Misplaced alignment tab character &. l.28 -1& 1& 0\\ I can't figure out why you would want to use a tab mark here. If you just want an ampersand, the remedy is simple: Just type `I\&' now. But if some right brace up above has ended a previous alignment prematurely, you're probably due for more error messages, and you might try typing `S' now just to see what is salvageable. ! Misplaced alignment tab character &. l.28 -1& 1& 0\\ I can't figure out why you would want to use a tab mark here. If you just want an ampersand, the remedy is simple: Just type `I\&' now. But if some right brace up above has ended a previous alignment prematurely, you're probably due for more error messages, and you might try typing `S' now just to see what is salvageable. ! Misplaced alignment tab character &. l.29 -1& -2&2 I can't figure out why you would want to use a tab mark here. If you just want an ampersand, the remedy is simple: Just type `I\&' now. But if some right brace up above has ended a previous alignment prematurely, you're probably due for more error messages, and you might try typing `S' now just to see what is salvageable. ! Misplaced alignment tab character &. l.29 -1& -2& 2 I can't figure out why you would want to use a tab mark here. If you just want an ampersand, the remedy is simple: Just type `I\&' now. But if some right brace up above has ended a previous alignment prematurely, you're probably due for more error messages, and you might try typing `S' now just to see what is salvageable. ! LaTeX Error: \begin{document} ended by \end{vmatrix}. See the LaTeX manual or LaTeX Companion for explanation. Type H for immediate help. ... l.30 \end{vmatrix} =-4 \T{ e' un minore non nullo della matrice dei generator... Your command was ignored. Type I to replace it with another command, or to continue without it. ! Undefined control sequence. l.30 \end{vmatrix}=-4 \T { e' un minore non nullo della matrice dei generator... The control sequence at the end of the top line of your error message was never \def'ed. If you have misspelled it (e.g., `\hobx'), type `I' and the correct spelling (e.g., `I\hbox'). Otherwise just continue, and I'll forget about whatever was undefined. ! Missing } inserted. } l.31 $ W$ }\\ I've inserted something that you may have forgotten. (See the above.) With luck, this will get me unwedged. But if you really didn't forget anything, try typing `2' now; then my insertion and my current dilemma will both disappear. ! Missing } inserted. } l.31 $ W$ }\\ I've inserted something that you may have forgotten. (See the above.) With luck, this will get me unwedged. But if you really didn't forget anything, try typing `2' now; then my insertion and my current dilemma will both disappear. ! Missing \endgroup inserted. \endgroup l.31 $ W$ }\\ I've inserted something that you may have forgotten. (See the above.) With luck, this will get me unwedged. But if you really didn't forget anything, try typing `2' now; then my insertion and my current dilemma will both disappear. Missing character: There is no W in font nullfont! ! Extra }, or forgotten $. l.31 $W$ } \\ I've deleted a group-closing symbol because it seems to be spurious, as in `$x}$'. But perhaps the } is legitimate and you forgot something else, as in `\hbox{$x}'. In such cases the way to recover is to insert both the forgotten and the deleted material, e.g., by typing `I$}'. ! Misplaced alignment tab character &. & l.32 & \qq \> \dim W = 3, \T{ e inoltre } \pgra{\vec{A_1A_i}\;|\;i=2,3,4} \T{... I can't figure out why you would want to use a tab mark here. If you just want an ampersand, the remedy is simple: Just type `I\&' now. But if some right brace up above has ended a previous alignment prematurely, you're probably due for more error messages, and you might try typing `S' now just to see what is salvageable. ! Undefined control sequence. l.32 &\qq \> \dim W = 3, \T{ e inoltre } \pgra{\vec{A_1A_i}\;|\;i=2,3,4} \T{... The control sequence at the end of the top line of your error message was never \def'ed. If you have misspelled it (e.g., `\hobx'), type `I' and the correct spelling (e.g., `I\hbox'). Otherwise just continue, and I'll forget about whatever was undefined. ! Undefined control sequence. l.32 &\qq \> \dim W = 3, \T { e inoltre } \pgra{\vec{A_1A_i}\;|\;i=2,3,4} \T{... The control sequence at the end of the top line of your error message was never \def'ed. If you have misspelled it (e.g., `\hobx'), type `I' and the correct spelling (e.g., `I\hbox'). Otherwise just continue, and I'll forget about whatever was undefined. ! Undefined control sequence. l.32 &\qq \> \dim W = 3, \T{ e inoltre } \pgra {\vec{A_1A_i}\;|\;i=2,3,4} \T{... The control sequence at the end of the top line of your error message was never \def'ed. If you have misspelled it (e.g., `\hobx'), type `I' and the correct spelling (e.g., `I\hbox'). Otherwise just continue, and I'll forget about whatever was undefined. ! Undefined control sequence. l.32 ...oltre } \pgra{\vec{A_1A_i}\;|\;i=2,3,4} \T { sono l.i }\\ The control sequence at the end of the top line of your error message was never \def'ed. If you have misspelled it (e.g., `\hobx'), type `I' and the correct spelling (e.g., `I\hbox'). Otherwise just continue, and I'll forget about whatever was undefined. ! Misplaced alignment tab character &. & l.33 & \\ I can't figure out why you would want to use a tab mark here. If you just want an ampersand, the remedy is simple: Just type `I\&' now. But if some right brace up above has ended a previous alignment prematurely, you're probably due for more error messages, and you might try typing `S' now just to see what is salvageable. ! Misplaced alignment tab character &. & l.34 & \pi=(B_1,U),\;\;U=\Ll{ \vec{B_1B_2}, \vec{B_1B_3}}\\ I can't figure out why you would want to use a tab mark here. If you just want an ampersand, the remedy is simple: Just type `I\&' now. But if some right brace up above has ended a previous alignment prematurely, you're probably due for more error messages, and you might try typing `S' now just to see what is salvageable. ! Undefined control sequence. l.34 &\pi=(B_1,U),\;\;U=\Ll { \vec{B_1B_2}, \vec{B_1B_3}}\\ The control sequence at the end of the top line of your error message was never \def'ed. If you have misspelled it (e.g., `\hobx'), type `I' and the correct spelling (e.g., `I\hbox'). Otherwise just continue, and I'll forget about whatever was undefined. ! Misplaced alignment tab character &. & l.35 & \vec{B_1B_2}=B_2-B-1=(0, 0, b - 3, 0, 1)\\ I can't figure out why you would want to use a tab mark here. If you just want an ampersand, the remedy is simple: Just type `I\&' now. But if some right brace up above has ended a previous alignment prematurely, you're probably due for more error messages, and you might try typing `S' now just to see what is salvageable. ! Misplaced alignment tab character &. & l.36 & \vec{B_1B_3}=B_3-B_1=(a, 0, 0, 0, 1)\\ I can't figure out why you would want to use a tab mark here. If you just want an ampersand, the remedy is simple: Just type `I\&' now. But if some right brace up above has ended a previous alignment prematurely, you're probably due for more error messages, and you might try typing `S' now just to see what is salvageable. ! Misplaced alignment tab character &. & l.37 & \sist{\dim \pi=2 <\dim W=\dim T= 3 \\ I can't figure out why you would want to use a tab mark here. If you just want an ampersand, the remedy is simple: Just type `I\&' now. But if some right brace up above has ended a previous alignment prematurely, you're probably due for more error messages, and you might try typing `S' now just to see what is salvageable. ! Undefined control sequence. l.37 &\sist {\dim \pi=2 <\dim W=\dim T= 3 \\ The control sequence at the end of the top line of your error message was never \def'ed. If you have misspelled it (e.g., `\hobx'), type `I' and the correct spelling (e.g., `I\hbox'). Otherwise just continue, and I'll forget about whatever was undefined. LaTeX Warning: Command \= invalid in math mode on input line 38. LaTeX Warning: Command \= invalid in math mode on input line 38. LaTeX Font Info: Try loading font information for +cmr on input line 38. LaTeX Font Info: No file cmr.fd. on input line 38. LaTeX Font Warning: Font shape `/cmr/m/n' undefined (Font) using `/cmr/m/n' instead on input line 38. ! Corrupted NFSS tables. wrong@fontshape ...message {Corrupted NFSS tables} error@fontshape else let f... l.38 \pi\parallel T \=U \( W \| W\( U }\> This error message was generated by an \errmessage command, so I can't give any explicit help. Pretend that you're Hercule Poirot: Examine all clues, and deduce the truth by order and method. LaTeX Font Warning: Font shape `/cmr/m/n' undefined (Font) using `OT1/cmr/m/n' instead on input line 38. ! Please use \mathaccent for accents in math mode. \add@accent ...@spacefactor \spacefactor }\accent #1 #2\egroup \spacefactor ... l.38 \pi\parallel T \=U \( W \| W\( U }\> I'm changing \accent to \mathaccent here; wish me luck. (Accents are not the same in formulas as they are in text.) ! Missing { inserted. \edef l.38 \pi\parallel T \=U \( W \| W\( U }\> A left brace was mandatory here, so I've put one in. You might want to delete and/or insert some corrections so that I will find a matching right brace soon. (If you're confused by all this, try typing `I}' now.) ! You can't use `\spacefactor' in math mode. \add@accent ...}\accent #1 #2\egroup \spacefactor \accent@spacefactor l.38 \pi\parallel T \=U \( W \| W\( U }\> Sorry, but I'm not programmed to handle this case; I'll just pretend that you didn't ask for it. If you're in the wrong mode, you might be able to return to the right one by typing `I}' or `I$' or `I\par'. ! LaTeX Error: Bad math environment delimiter. See the LaTeX manual or LaTeX Companion for explanation. Type H for immediate help. ... l.38 \pi\parallel T \=U\( W \| W\( U }\> Your command was ignored. Type I to replace it with another command, or to continue without it. ! LaTeX Error: Bad math environment delimiter. See the LaTeX manual or LaTeX Companion for explanation. Type H for immediate help. ... l.38 \pi\parallel T \=U\( W \| W\( U }\> Your command was ignored. Type I to replace it with another command, or to continue without it. ! LaTeX Error: Bad math environment delimiter. See the LaTeX manual or LaTeX Companion for explanation. Type H for immediate help. ... l.39 U\( W \= U\^ W =U\;\;(1) Your command was ignored. Type I to replace it with another command, or to continue without it. LaTeX Warning: Command \= invalid in math mode on input line 39. LaTeX Warning: Command \= invalid in math mode on input line 39. ! Please use \mathaccent for accents in math mode. \add@accent ...@spacefactor \spacefactor }\accent #1 #2\egroup \spacefactor ... l.39 U\( W \= U \^ W =U\;\;(1) I'm changing \accent to \mathaccent here; wish me luck. (Accents are not the same in formulas as they are in text.) ! Missing { inserted. \edef l.39 U\( W \= U \^ W =U\;\;(1) A left brace was mandatory here, so I've put one in. You might want to delete and/or insert some corrections so that I will find a matching right brace soon. (If you're confused by all this, try typing `I}' now.) ! You can't use `\spacefactor' in math mode. \add@accent ...}\accent #1 #2\egroup \spacefactor \accent@spacefactor l.39 U\( W \= U \^ W =U\;\;(1) Sorry, but I'm not programmed to handle this case; I'll just pretend that you didn't ask for it. If you're in the wrong mode, you might be able to return to the right one by typing `I}' or `I$' or `I\par'. LaTeX Warning: Command \^ invalid in math mode on input line 39. ! Please use \mathaccent for accents in math mode. \add@accent ...@spacefactor \spacefactor }\accent #1 #2\egroup \spacefactor ... l.39 U\( W \= U\^ W =U\;\;(1) I'm changing \accent to \mathaccent here; wish me luck. (Accents are not the same in formulas as they are in text.) ! You can't use `\spacefactor' in math mode. \add@accent ...}\accent #1 #2\egroup \spacefactor \accent@spacefactor l.39 U\( W \= U\^ W =U\;\;(1) Sorry, but I'm not programmed to handle this case; I'll just pretend that you didn't ask for it. If you're in the wrong mode, you might be able to return to the right one by typing `I}' or `I$' or `I\par'. ! Undefined control sequence. l.42 \eal {&U\^ W =U \= \dim U\^ W = \dim U\;\;(1.1) The control sequence at the end of the top line of your error message was never \def'ed. If you have misspelled it (e.g., `\hobx'), type `I' and the correct spelling (e.g., `I\hbox'). Otherwise just continue, and I'll forget about whatever was undefined. ! Misplaced alignment tab character &. l.42 \eal{& U\^ W =U \= \dim U\^ W = \dim U\;\;(1.1) I can't figure out why you would want to use a tab mark here. If you just want an ampersand, the remedy is simple: Just type `I\&' now. But if some right brace up above has ended a previous alignment prematurely, you're probably due for more error messages, and you might try typing `S' now just to see what is salvageable. LaTeX Warning: Command \^ invalid in math mode on input line 42. LaTeX Warning: Command \^ invalid in math mode on input line 42. ! Please use \mathaccent for accents in math mode. \add@accent ...@spacefactor \spacefactor }\accent #1 #2\egroup \spacefactor ... l.42 \eal{&U\^ W =U \= \dim U\^ W = \dim U\;\;(1.1) I'm changing \accent to \mathaccent here; wish me luck. (Accents are not the same in formulas as they are in text.) ! Missing { inserted. \edef l.42 \eal{&U\^ W =U \= \dim U\^ W = \dim U\;\;(1.1) A left brace was mandatory here, so I've put one in. You might want to delete and/or insert some corrections so that I will find a matching right brace soon. (If you're confused by all this, try typing `I}' now.) ! You can't use `\spacefactor' in math mode. \add@accent ...}\accent #1 #2\egroup \spacefactor \accent@spacefactor l.42 \eal{&U\^ W =U \= \dim U\^ W = \dim U\;\;(1.1) Sorry, but I'm not programmed to handle this case; I'll just pretend that you didn't ask for it. If you're in the wrong mode, you might be able to return to the right one by typing `I}' or `I$' or `I\par'. LaTeX Warning: Command \= invalid in math mode on input line 42. ! Missing $ inserted. $ l.42 \eal{&U\^ W =U \= \dim U\^ W = \dim U\;\;(1.1) I've inserted a begin-math/end-math symbol since I think you left one out. Proceed, with fingers crossed. ! Improper \spacefactor. \spacefactor l.42 \eal{&U\^ W =U \= \dim U\^ W = \dim U\;\;(1.1) You can refer to \spacefactor only in horizontal mode; you can refer to \prevdepth only in vertical mode; and neither of these is meaningful inside \write. So I'm forgetting what you said and using zero instead. ! Extra }, or forgotten $. \add@accent ... \accent@spacefactor \spacefactor } \accent #1 #2\egroup \spac... l.42 \eal{&U\^ W =U \= \dim U\^ W = \dim U\;\;(1.1) I've deleted a group-closing symbol because it seems to be spurious, as in `$x}$'. But perhaps the } is legitimate and you forgot something else, as in `\hbox{$x}'. In such cases the way to recover is to insert both the forgotten and the deleted material, e.g., by typing `I$}'. ! Please use \mathaccent for accents in math mode. \add@accent ...@spacefactor \spacefactor }\accent #1 #2\egroup \spacefactor ... l.42 \eal{&U\^ W =U \= \dim U\^ W = \dim U\;\;(1.1) I'm changing \accent to \mathaccent here; wish me luck. (Accents are not the same in formulas as they are in text.) ! Missing { inserted. \mathop l.42 \eal{&U\^ W =U \= \dim U\^ W = \dim U\;\;(1.1) A left brace was mandatory here, so I've put one in. You might want to delete and/or insert some corrections so that I will find a matching right brace soon. (If you're confused by all this, try typing `I}' now.) ! You can't use `\spacefactor' in math mode. \add@accent ...}\accent #1 #2\egroup \spacefactor \accent@spacefactor l.42 \eal{&U\^ W =U \= \dim U\^ W = \dim U\;\;(1.1) Sorry, but I'm not programmed to handle this case; I'll just pretend that you didn't ask for it. If you're in the wrong mode, you might be able to return to the right one by typing `I}' or `I$' or `I\par'. LaTeX Warning: Command \^ invalid in math mode on input line 42. ! Please use \mathaccent for accents in math mode. \add@accent ...@spacefactor \spacefactor }\accent #1 #2\egroup \spacefactor ... l.42 \eal{&U\^ W =U \= \dim U\^ W = \dim U\;\;(1.1) I'm changing \accent to \mathaccent here; wish me luck. (Accents are not the same in formulas as they are in text.) ! You can't use `\spacefactor' in math mode. \add@accent ...}\accent #1 #2\egroup \spacefactor \accent@spacefactor l.42 \eal{&U\^ W =U \= \dim U\^ W = \dim U\;\;(1.1) Sorry, but I'm not programmed to handle this case; I'll just pretend that you didn't ask for it. If you're in the wrong mode, you might be able to return to the right one by typing `I}' or `I$' or `I\par'. ! Extra }, or forgotten $. l.43 } I've deleted a group-closing symbol because it seems to be spurious, as in `$x}$'. But perhaps the } is legitimate and you forgot something else, as in `\hbox{$x}'. In such cases the way to recover is to insert both the forgotten and the deleted material, e.g., by typing `I$}'. ! Undefined control sequence. l.45 \eal {&\sist{U\^ W \( U\\ The control sequence at the end of the top line of your error message was never \def'ed. If you have misspelled it (e.g., `\hobx'), type `I' and the correct spelling (e.g., `I\hbox'). Otherwise just continue, and I'll forget about whatever was undefined. ! Misplaced alignment tab character &. l.45 \eal{& \sist{U\^ W \( U\\ I can't figure out why you would want to use a tab mark here. If you just want an ampersand, the remedy is simple: Just type `I\&' now. But if some right brace up above has ended a previous alignment prematurely, you're probably due for more error messages, and you might try typing `S' now just to see what is salvageable. ! Undefined control sequence. l.45 \eal{&\sist {U\^ W \( U\\ The control sequence at the end of the top line of your error message was never \def'ed. If you have misspelled it (e.g., `\hobx'), type `I' and the correct spelling (e.g., `I\hbox'). Otherwise just continue, and I'll forget about whatever was undefined. LaTeX Warning: Command \^ invalid in math mode on input line 45. ! Please use \mathaccent for accents in math mode. \add@accent ...@spacefactor \spacefactor }\accent #1 #2\egroup \spacefactor ... l.45 \eal{&\sist{U\^ W \( U\\ I'm changing \accent to \mathaccent here; wish me luck. (Accents are not the same in formulas as they are in text.) ! You can't use `\spacefactor' in math mode. \add@accent ...}\accent #1 #2\egroup \spacefactor \accent@spacefactor l.45 \eal{&\sist{U\^ W \( U\\ Sorry, but I'm not programmed to handle this case; I'll just pretend that you didn't ask for it. If you're in the wrong mode, you might be able to return to the right one by typing `I}' or `I$' or `I\par'. ! LaTeX Error: Bad math environment delimiter. See the LaTeX manual or LaTeX Companion for explanation. Type H for immediate help. ... l.45 \eal{&\sist{U\^ W \( U\\ Your command was ignored. Type I to replace it with another command, or to continue without it. LaTeX Warning: Command \^ invalid in math mode on input line 46. ! Please use \mathaccent for accents in math mode. \add@accent ...@spacefactor \spacefactor }\accent #1 #2\egroup \spacefactor ... l.46 \dim U\^ W = \dim U I'm changing \accent to \mathaccent here; wish me luck. (Accents are not the same in formulas as they are in text.) ! You can't use `\spacefactor' in math mode. \add@accent ...}\accent #1 #2\egroup \spacefactor \accent@spacefactor l.46 \dim U\^ W = \dim U Sorry, but I'm not programmed to handle this case; I'll just pretend that you didn't ask for it. If you're in the wrong mode, you might be able to return to the right one by typing `I}' or `I$' or `I\par'. LaTeX Warning: Command \^ invalid in math mode on input line 47. ! Please use \mathaccent for accents in math mode. \add@accent ...@spacefactor \spacefactor }\accent #1 #2\egroup \spacefactor ... l.47 } \> U\^ W =U I'm changing \accent to \mathaccent here; wish me luck. (Accents are not the same in formulas as they are in text.) ! You can't use `\spacefactor' in math mode. \add@accent ...}\accent #1 #2\egroup \spacefactor \accent@spacefactor l.47 } \> U\^ W =U Sorry, but I'm not programmed to handle this case; I'll just pretend that you didn't ask for it. If you're in the wrong mode, you might be able to return to the right one by typing `I}' or `I$' or `I\par'. Missing character: There is no ç in font cmex10! Missing character: There is no ç in font cmex10! Missing character: There is no ç in font cmex10! Missing character: There is no ç in font cmex10! ! Undefined control sequence. l.52 \eal {&\dim U\^ W = \dim U \= \rho(\T{sistema di }U\^W) =5-\dim U=3\\ The control sequence at the end of the top line of your error message was never \def'ed. If you have misspelled it (e.g., `\hobx'), type `I' and the correct spelling (e.g., `I\hbox'). Otherwise just continue, and I'll forget about whatever was undefined. ! Misplaced alignment tab character &. l.52 \eal{& \dim U\^ W = \dim U \= \rho(\T{sistema di }U\^W) =5-\dim U=3\\ I can't figure out why you would want to use a tab mark here. If you just want an ampersand, the remedy is simple: Just type `I\&' now. But if some right brace up above has ended a previous alignment prematurely, you're probably due for more error messages, and you might try typing `S' now just to see what is salvageable. LaTeX Warning: Command \^ invalid in math mode on input line 52. ! Please use \mathaccent for accents in math mode. \add@accent ...@spacefactor \spacefactor }\accent #1 #2\egroup \spacefactor ... l.52 \eal{&\dim U\^ W = \dim U \= \rho(\T{sistema di }U\^W) =5-\dim U=3\\ I'm changing \accent to \mathaccent here; wish me luck. (Accents are not the same in formulas as they are in text.) ! You can't use `\spacefactor' in math mode. \add@accent ...}\accent #1 #2\egroup \spacefactor \accent@spacefactor l.52 \eal{&\dim U\^ W = \dim U \= \rho(\T{sistema di }U\^W) =5-\dim U=3\\ Sorry, but I'm not programmed to handle this case; I'll just pretend that you didn't ask for it. If you're in the wrong mode, you might be able to return to the right one by typing `I}' or `I$' or `I\par'. LaTeX Warning: Command \= invalid in math mode on input line 52. ! Missing $ inserted. $ l.52 \eal{&\dim U\^ W = \dim U \= \rho (\T{sistema di }U\^W) =5-\dim U=3\\ I've inserted a begin-math/end-math symbol since I think you left one out. Proceed, with fingers crossed. ! Improper \spacefactor. \spacefactor l.52 \eal{&\dim U\^ W = \dim U \= \rho (\T{sistema di }U\^W) =5-\dim U=3\\ You can refer to \spacefactor only in horizontal mode; you can refer to \prevdepth only in vertical mode; and neither of these is meaningful inside \write. So I'm forgetting what you said and using zero instead. ! Extra }, or forgotten $. \add@accent ... \accent@spacefactor \spacefactor } \accent #1 #2\egroup \spac... l.52 \eal{&\dim U\^ W = \dim U \= \rho (\T{sistema di }U\^W) =5-\dim U=3\\ I've deleted a group-closing symbol because it seems to be spurious, as in `$x}$'. But perhaps the } is legitimate and you forgot something else, as in `\hbox{$x}'. In such cases the way to recover is to insert both the forgotten and the deleted material, e.g., by typing `I$}'. ! Please use \mathaccent for accents in math mode. \add@accent ...@spacefactor \spacefactor }\accent #1 #2\egroup \spacefactor ... l.52 \eal{&\dim U\^ W = \dim U \= \rho (\T{sistema di }U\^W) =5-\dim U=3\\ I'm changing \accent to \mathaccent here; wish me luck. (Accents are not the same in formulas as they are in text.) ! Extra }, or forgotten $. \add@accent ...\spacefactor }\accent #1 #2\egroup \spacefactor \accent@space... l.52 \eal{&\dim U\^ W = \dim U \= \rho (\T{sistema di }U\^W) =5-\dim U=3\\ (That makes 100 errors; please try again.) Here is how much of TeX's memory you used: 22 strings out of 94432 238 string characters out of 1175566 50348 words of memory out of 1000000 3330 multiletter control sequences out of 10000+50000 3640 words of font info for 14 fonts, out of 500000 for 2000 580 hyphenation exceptions out of 1000 18i,11n,16p,97b,127s stack positions out of 1500i,500n,5000p,200000b,5000s PDF statistics: 0 PDF objects out of 300000 0 named destinations out of 131072 1 words of extra memory for PDF output out of 10000 No pages of output.