28.2.1 Circle

Function

f=\left(x-x_c\right)^2+(y-y_c)^2-r^2

Brief Description

Implicit circle equation with parameters circle center and radius.

Sample Curve

ImCircle.png

Parameters

Number: 3

Names: xc, yc, r

Meanings: xc = x center, yc = y center, r = radius

Lower Bounds: r > 0.0

Upper Bounds: none

Derived Parameters

Area=\pi r^2

Script Access

nlf_Circle(x,y,xc,yc,r)

Function File

FITFUNC\CIRCLE.FDF

Category

Implicit