Polar ↔ Rectangular Coordinate Converter (Free)
Free polar and rectangular coordinate converter: switch a point between (x, y) and (r, θ) in degrees or radians, with the formulas and a diagram.
Derivative of Polar Coordinates: How to Find dy/dx
TL;DR: Polar curves don’t give you dy/dx directly, but you can still find the slope of the tangent line. Convert to parametric form using x equals r cosine theta and y equals r sine theta, then apply the parametric derivative formula. The slope works out to r-prime sine theta plus r cosine theta, all divided […]
