Why isn't my graph plotting?

This was my input code:

x = [0:0.25:5];

y = exp(x)/(exp(x)-1);

plot(x,y)

And when I run it it just comes up with a blank set of axes with no actual graph on it, not really sure why this is so any help would be appreciated!

Answer 1

[Star Strider]

That is because using matrix right division (/) it is plotting onlly one point, and while this would work if it also plots markers, will not work to plot lines, that require at least two points in order to draw a line between them.

Using element-wise division (./) creates the necessary vector and draws the plot —

x = [0:0.25:5];
y = exp(x)./(exp(x)-1);
%         ↑ ← HERE
plot(x,y)

.

[Anna Byrnes]

Thanks so much!

[Star Strider]

As always, my pleasure!

.