28.3.8 Gauss2D

Function

z=z_0+A\exp \left\{ -\frac 12\left( \frac{x-x_c}{w_1}\right) ^2-\frac 12\left( \frac{y-y_c}{w_2}\right) ^2\right\}

Brief Description

The Gaussian Surface

Sample Curve

Gauss2D.png

Parameters

Number: 6

Name: Meanings: Lower Bounds: Upper Bounds:

z_0

z offset

A

height

x_c

x center

w_1

x width

w_1>0

y_c

y center

w_2

y width

w_2>0

Derived Parameters

FWHM_x=2w_1\sqrt{2ln(2)}

FWHM_y=2w_2\sqrt{2ln(2)}

Volume=2\pi Aw_1w_2

Script Access

Function File

fitfunc\Gauss2D.fdf