Alternative Equation Formats

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MathML

\begin{array}{rcl} w (x) & = & {\begin{cases} (1 + \cos (π x)) / 2 & | x | \leq 1 \\ 0 & o t h e r w i s e \end{cases} \\ l (q) & = & \frac{2}{3} q^{1 / 5} \end{array}

Math Rendered as SVG

Math as LaTeX Source

\begin{eqnarray*} \mr{w}(x) & =& \begin{cases} (1+{\cos }( {\pi } x))/2 & {|x|}{\le }1 \\ 0 & \mr{otherwise} \end{cases}\\ \mr{l}(q) & =& \frac{2}{3} q^{1 / 5} \nonumber \end{eqnarray*}