`Conjugate`¶

Returns the complex conjugate. For real numbers, returns the number itself.

$ wo 'Conjugate[5]'
5

The imaginary unit flips sign, and an exact symbolic coefficient stays exact.

$ wo 'Conjugate[3 + 4*I]'
3 - 4*I

$ wo 'Conjugate[2 + I Pi]'
2 - I*Pi

Conjugate¶