Why do I get a graph without a line when I try to plot the following equation?

x = -1:.1:4;
y = (41.7*x)/(x.^2+1);
plot(x,y)

I am not getting any error messages, all I see is a blank graph when I run the script.

Answer 1

[Jos (10584)]

It is not blank, as 51 small dots are plotted. Try this:

plot (x,y,'bo')

This is default behaviour for plot when y is a scalar. If you would have taken a look at x and y in your workspace, you would probably have spotted that. The reason for y being a scalar is addressed by dpb.

Answer 2

[dpb]

Need the "dot" operator on the divide as well as the exponent...as is it's a matrix operator, not element-wise.

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