How to Calculate Complex Arithmetic
What is Complex Arithmetic?
Complex arithmetic performs addition, subtraction, multiplication, division with complex numbers a+bi.
Step-by-Step Guide
- 1Input two complex numbers
- 2Select operation
- 3Calculate result in standard form
Worked Examples
Input
(3+2i) × (1-i)
Result
5-i (using FOIL and i²=-1)
Common Mistakes to Avoid
- ✕Forgetting i²=-1
- ✕Not conjugating for division
Frequently Asked Questions
Why use complex numbers?
Solutions to equations with no real roots (x²+1=0), AC circuit analysis, signal processing.
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