Find Magnitude of Complex Number in Python

To find the magnitude of a complex number in Python, you can create a complex object and take the absolute value of that object.

c = complex(5,7) #represents the complex number 5 + 7i

magnitude = abs(c)

print(magnitude)

#Output:
8.602325267042627

One of the reasons why Python is so awesome is that we can perform a diverse set of calculations very easily. One calculation is to be able to find the magnitude of a complex number.

Complex numbers are made up of two parts. The first part is the “real” part, and the second part is the “imaginary” part.

The magnitude of a complex number is the length of the vector created by a coordinates from (0,0) by a complex number in the complex plane.

We can easily get the magnitude of a complex number with Python by utilizing the Python complex() function and Python abs() function.

Below are some examples of how you can find the magnitude of complex numbers in your Python code.

a = complex(5,7) #represents the complex number 5+7j
b = complex(2,-3) #represents the complex number 2-3j
c = complex("10-5j") #represents the complex number 10-5j
d = complex("4j") #represents the complex number 4j

print(abs(a))
print(abs(b))
print(abs(c))
print(abs(d))

#Output:
8.602325267042627
3.605551275463989
11.180339887498949
4.0

Hopefully this article has been useful for you to learn how to calculate the magnitude of a complex number in Python.