Equations for Cartesian and Polar Coordinate ConversionsDate: 05/06/2003 at 13:22:41 From: Todd Subject: Trigonometry Given the following points in polar coordinates, find the rectangular coordinates. (22, 51 degrees) Date: 05/06/2003 at 16:54:42 From: Doctor Luis Subject: Re: Trigonometry Hi Todd, You can switch between cartesian (also known as rectangular) coordinates (x, y) and polar coordinates (r, theta) using the following formulas: x = r cos(theta) r^2 = x^2 + y^2 y = r sin(theta) theta = arctan(y/x) Here's a diagram showing the origin of these equations: Let us know if you have any other questions. - Doctor Luis, The Math Forum http://mathforum.org/dr.math/ |
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