Finding the if the complex numbers with the imaginary part not equal to zero (array)

So I'm trying to figure out a way to find the terms that have an imaginary part that is not equal to zero

The array:

sp =

-1.0000 + 0.0000i

-0.8090 + 0.5878i

-0.8090 - 0.5878i

-0.3090 + 0.9511i

-0.3090 - 0.9511i

I tried

x = sp(imag(sp)<0)

as a test, but why doesn't

y = sp(imag(sp)=0)

work

Answer 1

[James Tursa]

The equality conditional operator in MATLAB is the double equals ==, so

y = sp(imag(sp)==0)

[Daniel Zalivchi]

Thank you