Alternative Equation Formats

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MathML

\begin{array}{rcl} d f^{(k)} & = & - g^{(k) T} s^{(k)} - \frac{1}{2} s^{(k) T} H^{(k)} s^{(k)} \\ = & - \frac{1}{2} s^{(k) T} g^{(k)} \\ \leq & r \end{array}

Math Rendered as SVG

Math as LaTeX Source

\begin{eqnarray*} df^{(k)} & = & -g^{(k)T} s^{(k)} - \frac{1}{2} s^{(k)T} H^{(k)} s^{(k)} \\ & = & -\frac{1}{2} s^{(k)T} g^{(k)} \\ & \leq & \Argument{r} \end{eqnarray*}