Polar Coordinates
Polar coordinates are used in the same way as rectangular coordinates. They can both be used to specify the same point on a graph. Polar coordinates are different from rectangular coordinates because they use the distance from the origin and the angle from the positive x-axis to define the point.
Polar Coordinates are represented by (r,θ) where as rectangular coordinates are represented by (x,y). The polar coordinates can be found by using the following formulas:
r = (x^2 + y^2)^.5 θ = tan^-1(y/x)
Likewise we are able to compute the rectangular coordinates given the polar coordinates in the following way:
x = r*cos(θ) y = r*sin(θ)
