import math as m def rec_to_pol(x,y): r = m.sqrt (x**2 + y**2) theta = m.degrees(m.atan2(y,x)) return (r,theta) def pol_to_rec(r,theta): x = r*m.cos(m.radians(theta)) y = r*m.sin(m.radians(theta)) return (x,y) def add_two_vectors(r1, theta1, r2, theta2): x1 = r1*m.cos(m.radians(theta1)) y1 = r1*m.sin(m.radians(theta1)) x2 = r2*m.cos(m.radians(theta2)) y2 = r2*m.sin(m.radians(theta2)) c = x1+x2 d = y1 + y2 r = m.sqrt(c**2 + d**2) theta = m.degrees(m.atan2(d,c)) return (r, theta) print rec_to_pol (3,4) print pol_to_rec (5,-126.87) print add_two_vectors(5, 45, 10, 120)
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