Alternative Equation Formats

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MathML

V^{(i)} (s) = {\begin{cases} W_{1}^{(i)} (- s) - | s | / 2 & if s \leq 0 \\ \sqrt{η_{i}} (ϕ_{i, 2} / ϕ_{i, 1}) W_{2}^{(i)} (s) - η_{i} | s | / 2 & if s > 0 \end{cases}

Math Rendered as SVG

Math as LaTeX Source

\[ V^{(i)}(s)= \left\{ \begin{array}{ l l } W_1^{(i)}(-s)-|s|/2 & \text {if}\ s \leq 0 \\ \sqrt{\eta _ i}(\phi _{i,2}/\phi _{i,1})W_2^{(i)}(s)-\eta _ i|s|/2 & \text {if}\ s > 0 \end{array} \right. \]