This elementary complex number calculator is for doing basic operations of addition subtraction multiplication and division of two complex numbers. Additionally it can be used to calculate powers where both the base and the exponent are complex numbers.
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You can enter the parts of a complex numbers either in the rectangular (standard) form a+bi or polar form r∠θ. The complex calculator converts from one form to the other form as you type.

To perform the operations on the two entered complex numbers press the relevant button provided. The result of the calculation is given in both rectangular and polar forms. You can conveniently specify the number of decimal places or significant digits with which the calculated results are displayed by using the slider provided. You can also conveniently reuse the result of a calculation with optimal precision.

This complex numbers calculator allows the parts of a complex number be entered as an expression such as 1/2 + 2(3+4)^3 - 4√(5) + 2π/6.

When you enter a complex number in the polar form the Complex Number Calculator allows inputting the angle in degrees or radians.
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