Learning focus 1
Use i for the imaginary unit and parentheses to group terms.
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Complex Numbers Calculator
Evaluate complex-number arithmetic, powers, magnitudes, and conjugates using i for the imaginary unit.
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How to Use the Complex Numbers Calculator
1
Enter a complex expression
Use i for the imaginary unit and parentheses to group terms.
2
Combine real and imaginary parts
The calculator applies complex arithmetic rules exactly.
3
Get standard form
Results are returned in a + bi form or as an exact real value.
Example
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What the Complex Numbers Calculator Helps You Understand
Evaluate complex-number arithmetic, powers, magnitudes, and conjugates using i for the imaginary unit.
Learning focus 2
The calculator applies complex arithmetic rules exactly.
Learning focus 3
Results are returned in a + bi form or as an exact real value.
Input tips
- • Use i for the imaginary unit and parentheses to group terms.
- • Use i, as in 3 + 4i.
Common mistakes to avoid
- • Using the real-number rule for the square root of a negative value.
- • Forgetting that i squared equals -1 when multiplying complex numbers.
Frequently Asked Questions
How do I enter the imaginary unit?
Use i, as in 3 + 4i.
Can it calculate magnitude?
Yes. Use abs(3 + 4i) to calculate the magnitude.