main_vector.py

#-*- coding:utf-8 -*-
from playLA.Vector import Vector

if __name__ == "__main__":
    vec = Vector([5,2])
    print(len(vec))
    print(vec)
    print("vec[0] = {}, vec[2] = {}".format(vec[0],vec[1]))

    vec2 = Vector([3,1])
    print("{} + {} = {}".format(vec,vec2,vec+vec2))
    print("{} - {} = {}".format(vec, vec2, vec - vec2))
    print("{} * {} = {}".format(vec, 3, vec * 3))
    print("{} * {} = {}".format(3, vec, 3 * vec))
    print("+{} = {}".format(vec,+vec))
    print("-{} = {}".format(vec,-vec))

    zero2 = Vector.zero(2)
    print(zero2)
    print("{} + {} = {}".format(vec,zero2,vec + zero2))

    print("norm({}) = {}".format(vec,vec.norm()))
    print("norm({}) = {}".format(vec2,vec.norm()))
    print("norm({}) = {}".format(zero2,zero2.norm()))

    print("normalize {} is {}".format(vec,vec.normalize()))
    print(vec.normalize().norm())

    print("normalize {} is {}".format(vec2,vec2.normalize()))
    print(vec2.normalize().norm())

    try:
        zero2.normalize()
    except ZeroDivisionError:
        print("Cannot normalize zero vector {}.".format(zero2))

    print(vec.dot(vec2))