real

Purpose

Returns the real part of x.

Format

zr = real(x)

Parameters:

x (NxK matrix or N-dimensional array) – data

Returns:

zr (NxK matrix or N-dimensional array) – the real part of x.

Examples

x = {  1 11+2i,
       7i 3,
     2+1i 1 };
zr = real(x);

After the code above, x and zr are equal to:

    1+0i  11+2i       1 11
x = 0+7i   3+0i  zr = 0  3
    2+1i   1+0i       2  1

Remarks

If x is not complex, zr will be equal to x.

See also

Functions complex(), imag()