Complex polynomial value calculation

The calculator evaluates polynomial value. The polynomial coefficients can be either real or complex.

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A polynomial is defined by the coefficients array, which can be real or complex numbers. First coefficient belongs to highest degree term, the last one is constant term. The polynomial degree is automatically calculated by the number of coefficients. If your polynomial has no some term just set zero as its coefficient. Both polynomial coefficient and sample variable value can be either real or complex. (For real number enter zero in imaginary part.)


Polynomial value

Polynomial coefficients

Real partImaginary part
Items per page:

Real part of the complex number

Imaginary part of the complex number

Digits after the decimal point: 2
Point x
Polynomial value in x
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The calculator can be used for equation solution checking. E.g. this one: Quartic equation or this: Cubic equation.