How can the Euclidean distance be calculated with NumPy?

633    Asked by AnushaAcharya in Python , Asked on Apr 10, 2021

 I have two points in 3D:

(xa, ya, za)
(xb, yb, zb)
And I want to calculate the distance:
dist = sqrt((xa-xb)^2 + (ya-yb)^2 + (za-zb)^2)
What's the best way to do this with NumPy, or with Python in general? I have:
a = numpy.array((xa ,ya, za)
)
b = numpy.array((xb,
yb, zb))

Answered by Anusha Acharya

To calculate numpy euclidean distance you can use numpy.linalg.norm:

numpy.linalg.norm(x, ord=None, axis=None, keepdims=False):-

It is a function which is able to return one of eight various matrix norms, or one of an infinite number of vector norms, depending on the value of the ord parameter.

You can use the following piece of code to calculate the distance:-

import numpy as np
from numpy import linalg as LA
a = (1, 2, 3)
b = (4, 5, 6)
dist = numpy.linalg.norm(a-b)

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