MATLAB: Do I get a graph without a line when I try to plot the following equation

plot

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.

Best Answer

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.
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