# Complex Number Calculator

Find the Multiplication, Division and Square root for given complex numbers:

**Multiplication:** [ (a+bi) × (a+bi) ]

**Division:** [ (a+bi) / (a+bi) ]

**Square root:** [ r1 = x+yi ; r2 = -x-yi ]

Calculators is for use with complex numbers - meaning numbers that have the form a + bi. When a number has the form a + bi means a real number plus an imaginary number it is called a complex number. A complex number such as 3 + 7i would be entered as a=3 bi=7.

## Formulas

**Multiplication:** [ (a+bi) × (a+bi) ]

**Division:** [ (a+bi) / (a+bi) ]

**Square root:** [ r1 = x+yi ; r2 = -x-yi ]