Abs Function for Complex Argument

1

Hi,

Can anyone please guide me on what the abs function do when the argument is a complex number? Does it calculate the magnitude? In that case, what is the mathematical formulation for that?

Thanks

2

Yes, the magnitude.

If x is a complex scalar, abs(x) = norm([real(x),imag(x)])

If X is a complex array, this same calculation is performed for every element of the array.

This is the same behavior as MATLAB’s abs when applied to numeric arguments.