MATLAB: How to plot in a for loop

for loopsMATLABplotsplottingtrigvectors

I am trying to plot y=A*(x+B)^n with constant A and B-values but I want to plot three different lines, each with a different n-value (n=1, 2, and 3). It keeps giving me a plot with one line and it also says there is an error using ".^". Can anybody tell me what's wrong with my code?
x = linspace(0, 2*pi, 100);
A = 1;
B = 1;
n = 1:3;
y = A*(x+B).^n;
for n = 1:3
  plot(x,y); hold on
end
hold off

Best Answer

Use the bsxfun function to automatically expand the vectors:
x = linspace(0, 2*pi, 100);
A = 1;
B = 1;
n = 1:3;
y = bsxfun(@power, A*(x+B), n');
for n = 1:3
  plot(x,y); hold on
end
hold off
Note the transpose (') operator on ‘n’.
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