enter image description here

I want to find the Abs square of this complex expression.

I tried using Abs command and then squaring it but nothing happened, it just showed 'Abs' in the output. I also tried multiplying it with its conjugate but to no avail.

I think the problem is that it doesn't know which terms are complex and which are real. Here everything is real except the Iota part of course.

I do not know how to specify others as real or find its Absolute value in general. May anyone suggest something?

  • 4
    $\begingroup$ MA assumes that all your variables are complex. Use ComplexExpand[Abs[...]] $\endgroup$
    – yarchik
    Nov 3, 2020 at 6:51
  • $\begingroup$ Thanks that worked $\endgroup$
    – Lost
    Nov 3, 2020 at 7:03


Browse other questions tagged or ask your own question.