Power

Evaluates the equation of a circumference in a given point.

Syntax

power(Circumference, Point)

Description

Given a circumference with center (x0,y0) and radius r, we define the function f(x,y)=(x-x0)2+(y-y0)2-r2. Then, given a point P=(px,py), this function returns f(px,py).

calc.power.calc.png