I have two arrays of the same size: e0 and tmp. isequal(e0,tmp) = 1, isreal(e0) = 0, isreal(tmp) = 1. How is that possible?

I have two arrays of the same size: e0 and tmp: >> isequal(e0,tmp)

ans =

     1

>> isreal(e0)

ans =

     0

>> isreal(tmp)

ans =

     1

How is that possible?

Answer 1

[Walter Roberson]

A = complex(5,0);
B = 5;
isreal(A), isreal(B)
isequal(A, B)

isequal() tests for equal values, not for the arrays being identical in datatype.

isreal() checks for the complex part existing, not for the complex part being non-zero.