28.3.12 LogNormal2D

Function

z=z_0+B\exp \left\{ -\frac{\left( \ln \frac xC\right) ^2}{2D^2}\right\} +E\exp \left\{ -\frac{\left( \ln \frac yF\right) ^2}{2G^2}\right\} +H\exp \left\{ -\frac{\left( \ln \frac xC\right) ^2}{2D^2}-\frac{\left( \ln \frac yF\right)^2 }{2G^2}\right\}

Brief Description

Non-linear Log Normal Function

Sample Curve

Image050.gif

Parameters

Number: 8

Name: Meanings: Lower Bounds: Upper Bounds:

z_0

z offset

B

height

C

x center

D

x width

E

height

F

y center

G

y width

H

height

Script Access

Function File

fitfunc\LogNormal2D.fdf