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Tool 470 · complex plane studio

Rectangular, polar, roots — all in one complex plane.

Calculate with two complex numbers, switch between rectangular and polar thinking, use De Moivre for powers and roots, inspect conjugates and arguments, and visualize every result on the complex plane.

Rectangular + polarAll nth rootsDe Moivre stepsComplex-plane visualizer

Complex inputs

Use real/imaginary fields or paste forms like 3+4i.

z₁

z₂

Result

Choose an operation.

No result yet.

z₁ snapshot

Rectangular

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Polar / cis

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Exponential

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Calculation steps appear here.
Choose nth roots or square roots.
Core formulas:
z = a + bi, |z| = √(a²+b²), arg(z)=atan2(b,a), z = r(cos θ + i sin θ)=reiθ.
De Moivre: zⁿ = rⁿ cis(nθ). nth roots: r1/n cis((θ+2πk)/n), k=0,…,n−1.