Ellipse

Contents 1 Function 2 Brief Description 3 Sample Curve 4 Parameters 5 Script Access 6 Function File 7 Category

Function

\[f = \left(\frac{x-x_c}{a}\right)^2 + \left(\frac{y-y_c}{b}\right)^2 - 1\]

Brief Description

Ellipse function.

Sample Curve

Parameter

Number: 4

Names: xc, yc, a, b

Meanings: xc = x center, yc = y center, a = major radius, b = minor radius

Lower Bounds: a > 0.0, b > 0.0

Upper Bounds: none

Script Access

nlf_Ellipse(x,y,xc,yc,a,b)

Function File

FITFUNC\ELLIPSE.FDF

Category

Implicit