Problem in plotting a sinc function

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Muhammad Saim Nasir Siddiqui
评论： Star Strider 2015-3-8
when i run this code.. it shows me an error
Error in ==> plotsinc at 2
y = sinc(x);
what that means...
iam using this code ..to plot a basic sinc function
x = linspace(-5,5);
y = sinc(x);
plot(x,y)
  1 个评论
Geoff Hayes
Geoff Hayes 2015-3-7
Muhammad - please post the full error message (so that would be all of the red text that is generated when you run your above code).

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Star Strider
Star Strider 2015-3-7
The code you posted runs for me without error.
The sinc function is part of the Signal Processing Toolbox.
If don’t have the Signal Processing Toolbox, you can create your own version of sinc easily enough:
sincx = @(x) sin(pi*x+1E-8)./(pi*x + 1E-8);
x = linspace(-5,5);
y = sincx(x);
plot(x,y)

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