ruby: sum corresponding members of two or more arrays
For clearer syntax (not the fastest), you can make use of Vector:
require 'matrix'Vector[1,2,3] + Vector[4,5,6]=> Vector[5, 7, 9]For multiple vectors, you can do:
arr = [ Vector[1,2,3], Vector[4,5,6], Vector[7,8,9] ]arr.inject(&:+)=> Vector[12, 15, 18]If you wish to load your arrays into Vectors and sum:
arrays = [ [1,2,3], [4,5,6], [7,8,9] ]arrays.map { |a| Vector[*a] }.inject(:+)=> Vector[12, 15, 18]