Numpy arrays addition

Question

I have 4 different numpy arrays with 40 values in each and i want to add all the elements at position 0 of 4 arrays together and store in another array at loc 0. All the elements at location 1 and store in location 1 and same for all 40 elements of 4 arrays . How should I do in python?

it would be good if you can give an example of what you want, it seems to me you want to simply add 4 arrays — moth
– moth, Commented Dec 23, 2021 at 8:27
no minimum effor code example, poor explanation, no research done. — Dariusz Krynicki
– Dariusz Krynicki, Commented Dec 23, 2021 at 8:28
Does this answer your question? Numpy element-wise addition with multiple arrays — Tomerikoo
– Tomerikoo, Commented Dec 23, 2021 at 9:19

Glauco · Accepted Answer · 2021-12-23 08:39:27Z

0

I suggest to do some study on broadcasting

NumPy operations are usually done on pairs of arrays on an element-by-element basis. In the simplest case, the two arrays must have exactly the same shape,

From your question it seems you are in the simplest use case, like the following:

import numpy as np
arr = np.arange(4)
arr+arr*arr+arr

#array([ 0,  3,  8, 15])

multiple operations on array of the same shape

answered Dec 23, 2021 at 8:39

Glauco

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2 Comments

Tomerikoo Over a year ago

OP just wants to do element-wise addition between 4 arrays...

Glauco Over a year ago

The example do exactly this, apply different operation element-wise on 4 array

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