% use [nosolutions] flag to hide solutions. % use [solutions] flag to show solutions. \documentclass[ solutions, hidewarning, %singlenumbering ]{../../resources/ormc_handout} %\usepackage{lua-visual-debug} \usepackage{tikz-3dplot} \usetikzlibrary{ quotes, angles, matrix, decorations.pathreplacing, calc, positioning, fit } \input{tikzset} \uptitlel{Advanced 2} \uptitler{Spring 2023} \title{Linear Algebra 101} \subtitle{Prepared by Mark on \today} \begin{document} \maketitle \input{parts/0 notation} \input{parts/1 vectors} \input{parts/2 dotprod} \input{parts/3 matrices} \section{Bonus} \problem{} Show that the euclidean norm satisfies the triangle inequalty: $$ ||x+y|| \leq ||x|| + ||y|| $$ \vfill \problem{} Show that the eucidean norm satisfies the reverse triangle inequality: $$ ||x-y|| \geq |~||x|| - ||y||~| $$ \vfill \problem{} Prove the Cauchy-Schwartz inequality: $$ ||x \cdot y|| \leq ||x||~||y|| $$ \vfill \end{document}