apply(BasicList,BasicList,Function) -- apply a function to pairs of elements, one from each list

Synopsis

Function: apply
Usage:

apply(L1,L2,f)
Inputs:
- L1, a basic list or a string
- L2, a basic list or a string of the same length as L1
- f, a function, with two arguments
Outputs:
- a basic list, with the ith element obtained by evaluating f(L1_i,L2_i)

The result will have the same class as the class of L1 and L2.

i1 : apply({1,2,3}, {100,200,300}, (i,j) -> i+j)

o1 = {101, 202, 303}

o1 : List

i2 : apply([1,2,3], [100,200,300], (i,j) -> i+j)

o2 = [101, 202, 303]

o2 : Array

i3 : apply((1,2,3), (100,200,300), (i,j) -> i+j)

o3 = (101, 202, 303)

o3 : Sequence

The exception is that for strings, the result will be a sequence.

i4 : apply("foo", "bar", concatenate)

o4 = (fb, oa, or)

o4 : Sequence