How to perform element-wise multiplication of two lists?

elementwise-operations, list, multiplication, python

Solution

Use a list comprehension mixed with `zip()`:.

[a*b for a,b in zip(lista,listb)]

Problem

I want to perform an element wise multiplication, to multiply two lists together by value in Python, like we can do it in Matlab. This is how I would do it in Matlab. ``` a = [1,2,3,4] b = [2,3,4,5] a .* b = [2, 6, 12, 20] ``` A list comprehension would give 16 list entries, for every combination `x * y` of `x` from `a` and `y` from `b`. Unsure of how to map this. If anyone is interested why, I have a dataset, and want to multiply it by `Numpy.linspace(1.0, 0.5, num=len(dataset)) =)`.

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