complex number calculator enter the value and click "calculate", the calculation result will be displayed. formula: addition = (a+bi) + (a+bi) subtraction = (a+bi) - (a+bi) multiplication = (a+bi) x (a+bi) division = (a+bi) / (a+bi) Root = ± [√(|z| + x)/2 + √(|z| - x)/2 . i] choose a calculator: addition subtraction multiplication division root a : bi : a: bi: calculation result: --- --- ---