Complex Number Calculator Online

■ You can use algebraic expressions, and expressions containing trig functions, exponential and logarithmic functions, hyperbolic functions with real or complex number arguments.

■ You can enter complex numbers in standard form, a + bi, or use the cis function to enter complex numbers in polar form, rcis(θ) which stands for r(cos(θ) + i sin(θ)) which is equal to reiθ.

■ If the result of a calculation is a complex number, it is automatically displayed in standard form and cis form (and its equivalent exponential form).

■ Warning: In Degree mode, you may get unexpected erroneous results if the argument of the non-algebraic functions you use in your expressions is not a purely real or purely imaginary number. Use Degrees with discretion when calculating complex number.