real part of a complex number
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Hi,
I am trying to get the real part of a complex number and my matlab gives error.
for example: I write:
Z = 2+3*i;
X = real(Z) code
and I get:
Index exceeds matrix dimensions.
Any idea why?
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/161394/image.png)
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Stephen23
le 6 Mar 2017
Modifié(e) : Stephen23
le 6 Mar 2017
Because you have assigned the name real to a variable. When you shadow an inbuilt function or variable with your own variable, then that inbuilt function cannot be called.
Solution: clear that variable:
clear real
And do not use variable names length, size, cell, i, j, real, etc.
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