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

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

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 MATLABâ€™s `abs`

when applied to numeric arguments.