Python cmath.rect() Method

Example

Convert polar coordinates to rectangular form:

#import cmath for complex number operations
import cmath

#convert a polar coordinate to rectangular form
print(cmath.rect(3.1622776601683795, 1.2490457723982544))

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Definition and Usage

The cmath.rect() method converts polar coordinates to rectangular form of the complex number. It creates a complex number with phase and modulus.

This method is equivalent to r * (math.cos(phi) + math.sin(phi)*1j).

Note: The radius r is the length of the vector, and phi (phase angle) is the angle made with the real axis.

Syntax

cmath.rect(r, phi)

Parameter Values

Parameter	Description
r	Required. Represents the modulus of a complex number
phi	Required. Represents the phase of a complex number

Technical Details

Return Value:	A `complex` value, representing the rectangular form of a complex number
Python Version:	2.6

❮ cmath Methods