I created the following function:

`function [x] = f(y)x = (y==0).*1+(y~=0).*(1./y);`

With the following input, it returns this:

`f([-3:3])ans = -0.3333 -0.5000 -1.0000 NaN 1.0000 0.5000 0.3333 `

The value should be 1 when y == 0 but it shows NaN instead (assumably by evaluating 1./y when y == 0)

## Best Answer