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10 cards from this deck
Distance from origin on Argand diagram
∣z∣=a2+b2|z| = \sqrt{a^2 + b^2}∣z∣=a2+b2
∣z∣|z|∣z∣
Angle θ\thetaθ with positive real axis
arg(z)\arg(z)arg(z)
θ=tan−1(ba)\theta = \tan^{-1}\left(\frac{b}{a}\right)θ=tan−1(ab) (adjust for quadrant)
Radians
Real part of complex number
Imaginary part of complex number
z=∣z∣(cosθ+isinθ)z = |z|(\cos \theta + i \sin \theta)z=∣z∣(cosθ+isinθ)
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