\relax \providecommand\tcolorbox@label[2]{} \@writefile{toc}{\contentsline {section}{\numberline {1}One vector}{2}} \@writefile{toc}{\contentsline {section}{\numberline {2}Two vectors}{2}} \@writefile{toc}{\contentsline {section}{\numberline {3}A matrix}{3}} \@writefile{toc}{\contentsline {section}{\numberline {4}$A*x=y:$ A matrix can multiply a vector}{4}} \@writefile{toc}{\contentsline {section}{\numberline {5}Solving $A*x=y$ for $x$}{4}} \@writefile{toc}{\contentsline {section}{\numberline {6} Matrix and vector norms estimate the size of $A*x$}{5}} \@writefile{toc}{\contentsline {section}{\numberline {7} Computing Assignment \#1}{5}}