Reciprocal of a complex number

Online calculator for calculating the reciprocal value (inverse) of a complex number


This function calculates the reciprocal of a complex number.

To perform the calculation, enter the value of the complex number whose reciprocal is to be calculated. Then click the button 'Calculate'.


Reciprocal value calculator

 Input
Complex number +  i
Decimal places
 Results
Reciprocal

Formula for reciprocal value


In the following description, \(z\) stands for the complex number. \(x\) stands for the real value \(Re\) and \(y\) for the imaginary value \(Im\).

\(z = Re(x)+Im(y)\)
\(\displaystyle\frac{1}{z}=\frac{x}{x^2+y^2}+\frac{-y}{x^2+y^2}\)

Example


\(z = Re(3)+Im(5)\)
\(\displaystyle\frac{1}{z}=\frac{3}{3^2+5^2}+\frac{-5}{3^2+5^2}\)
\(\displaystyle\frac{1}{z}=\frac{3}{9+25}+\frac{-5}{9+25}\)
\(\displaystyle\frac{1}{z}=\frac{3}{34}+\frac{-5}{34}\)
\(\displaystyle\frac{1}{z}= 0.088-0.147i\)

More complex functions

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Airy functionDerivative Airy function
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