#!/usr/bin/env ruby require("gsl") a = Vector.alloc(1, 2, 3, 4, 5) b = Vector.alloc(6, 7, 8, 9, 10) p a * b p a a *= b p a a /= b p a p a * 2 p a a *= 2 p a a /= 2 p a p 2 * a p a p 5 / a p a