from math import sqrt,acos,degrees
from mpl_toolkits.mplot3d import axes3d   # used in draw_vector function 
import matplotlib.pyplot as plt   # used in draw_vector function
import numpy as np
from myvectors.myvectors import mag,dot,cross,projection,angle,trianglearea,sectionsutram,collinear3,s_triplepro,v_triplepro,draw_vector,direction_Cosine
