Alternative Equation Formats

$\begin{array}{ll}y=x_j& \text{if }g<\frac{1}{2}\\ y=x_j& \text{if }g=\frac{1}{2}\text{ and }\mathit{j}\text{ is even}\\ y=x_{j+1}& \text{if }g=\frac{1}{2}\text{ and }\mathit{j}\text{ is odd}\\ y=x_{j+1}& \text{if }g>\frac{1}{2}\end{array}$

$\begin{array}{ll}y=x_j& \text{if }g<\frac{1}{2}\\ y=x_j& \text{if }g=\frac{1}{2}\text{ and }\mathit{j}\text{ is even}\\ y=x_{j+1}& \text{if }g=\frac{1}{2}\text{ and }\mathit{j}\text{ is odd}\\ y=x_{j+1}& \text{if }g>\frac{1}{2}\end{array}$

$\begin{array}{ll} y=x_ j & \mbox{if } g < \frac{1}{2} \\ y=x_ j & \mbox{if } g=\frac{1}{2} \mbox{ and } \mi{j} \mbox{ is even} \\ y=x_{j+1} & \mbox{if } g=\frac{1}{2} \mbox{ and } \mi{j} \mbox{ is odd} \\ y=x_{j+1} & \mbox{if } g > \frac{1}{2} \\ \end{array}$