Simple question, how can I plot this tan x function?

I want to be able to plot the following equation into matlab and be able to graph it, but I'm not sure how to do it.

- x = - tan (y)

How would I go about this?

Answer 1

[Star Strider]

Perhaps —

x = @(y) tan(y)

x = function_handle with value:
    @(y)tan(y)

figure
fplot(x, [-pi pi])
grid
xticks([-pi -pi/2 0 pi/2 pi])
set(gca, 'XTickLabel',{'$-\pi$', '$-\frac{\pi}{2}$' '$0$' '$\frac{\pi}{2}$' '$\pi$'}, 'TickLabelInterpreter','latex', 'FontSize',12)

.