Math
Complex Number Calculator
Add, subtract, multiply, or divide two complex numbers a+bi and c+di.
Free to use — no sign-up or login.
Real
Imag
Amortization schedule
| # | Date | Payment | Principal | Extra | Interest | Balance |
|---|---|---|---|---|---|---|
This free Complex Number Calculator covers Add, subtract, multiply, or divide two complex numbers a+bi and c+di.
Use rectangular arithmetic; division multiplies by the conjugate. Related math tools sit beside How it works, with no account required.
Using the Complex Number Calculator
Add, subtract, multiply, or divide two complex numbers a+bi and c+di. Typical inputs are a (real), b (imag), c (real) and d (imag). How it works beside the form states the identity the Complex Number Calculator applies.
FAQ
How do I use the Complex Number Calculator?
Open the Complex Number Calculator, fill a (real), b (imag), c (real) and d (imag), and read the result. Use rectangular arithmetic; division multiplies by the conjugate.
What formula does the Complex Number Calculator use?
The Complex Number Calculator uses the identity in How it works. In words: Use rectangular arithmetic; division multiplies by the conjugate.