Definition:Real Part/Polar Form
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Definition
Let $z$ be a complex number expressed in polar form:
- $z = \polar {r, \theta}$
The real part of $z$ is:
- $\map \Re z = r \cos \theta$
Also see
- Results about real parts can be found here.
Sources
- 1964: Milton Abramowitz and Irene A. Stegun: Handbook of Mathematical Functions ... (previous) ... (next): $3$: Elementary Analytic Methods: $3.7$ Complex Numbers and Functions: Polar Form: $3.7.5$: Real Part