How can I convert polar coordinates to rectangular coordinates?
Calculus - Reiny, Friday, July 29, 2011 at 4:04pm
suppose you have a point (r,Ø)
Join the point to the origin and complete the right-angled triangle.
Call the point (r,Ø) as (x,y) in the rectangular system.
r^2 = x^2 + y^2
and tanØ = y/x
x/r = cosØ ---> x = rcosØ
y/r=sinØ ---> y = rsinØ
Depending on the equation, you sometimes have to be very creative in converting from one system to the other.
Do you have an example?