# Complex Numbers | IntMath forum

- INTEGRATION [Solved!]

Must the differential be included ALWAYS in the integrand? If so, then why?**phinah**03 Feb 2020, 03:31 - All numbers from the sum of complex numbers? [Solved!]

Is it true, that all numbers can be made, as the sum of complex numbers,...**BuBu**08 Dec 2019, 04:47 - square root of a complex number [Solved!]

I cant get a formula for the square root of `a + bi` to work.**Jedothek**22 Nov 2019, 11:24 - square roots! [Solved!]

Hello Murray, I wanted to ask you a strange question that I found it little weird.....**NourHlwani**03 Jul 2016, 05:53 - Index problem [Solved!]

What is the difference between (-1)^2/2 and ((-1)^2)^1/2?**Rapelang**10 Dec 2015, 03:27