How do I test a vector element by element for imaginary elements

Here is the the vector i Have

r =

-1.6659 + 0.0000i

-0.3049 + 1.1564i

-0.3049 - 1.1564i

1.1378 + 0.3231i

1.1378 - 0.3231i

I am trying to check which elements are real numbers by means of a code, then after i'll have to calculate the percentage of those that are imaginary. Pls help

Thank You.

Answer 1

[John D'Errico]

What does the function imag return?

Given that, what would

imag( r ) ~= 0

tell you? see that it returns a true or false value for each element.

Now, how would you compute the fraction of imaginary elements? That seems simple, since you can write things like

sum(imag( r ) ~= 0)

[Asemahle Ndamase]

Thank You John, that solved my problem