vector - Element-wise Operations In Javascript

Question

I'm doing some physics simulations which of course involve vectors. This has become very difficult for me because to the best of my knowledge javascript doesn't support anything like this...

#with the aid of numpy
>>> a = np.array([1,2,3])
>>> b = np.array([9,2,7])
>>> a+b
array([10,  4, 10])

I've been able to work around this limitation by defining functions that will achieve the same thing, but my formulas end up looking like this:

add(x, add( mult(v,dt), mult(mult( a(x), .5), Math.pow(dt,2))))

So my question is whether there are better ways to achieve this functionality, whether they be features of the language I am unaware of, libraries that address this issue, or more effective ways to deal with it.

Thanks for the help all.

Answer 1

we can use the map function to add array elements:

function addvector(a,b){
    return a.map((e,i) => e + b[i]);
}
addvector([2,3,4],[4,7,90]) # returns [6,10,94]