map with multiple input matrices / arrays

[dvd101x]

Hi,

Currently map uses a single input matrix or array and a callback function with a single input

const square = math.square
const x = [1, 2, 3]
math.map(x, square) // [1, 4, 9]

What if it could work with multiple inputs?

const sumOfSquares = (a, b) => a**2 + b**2
const x = [1, 2, 3]
const y = [4, 5, 6]
math.map(x, y, sumOfSquares) // [17, 29, 45]

And include broadcasting

const sumOfSquares = (a, b) => a**2 + b**2
const x = [1, 2]
const y = [[3], [4]]
math.map(x, y, sumOfSquares) // [[10, 13], [17, 20]]

I would like to discuss the idea of map using multiple broadcasted inputs.

[josdejong]

Nice idea, I like it 👍

[dvd101x]

I'm glad you like it.

Is it ok if I attempt a PR for this new functionality?

[josdejong]

Yes, that sounds good!

[lulunac27a]

It's based on Array.prototype.map function in JavaScript