Elliptic fxi/geta/hzeta#
Elliptic fxi = {model_name} {float_list}
Elliptic geta = {model_name} {float_list}
Elliptic hzeta = {model_name} {float_list}
Description / Usage#
This is used to control mesh spacing in the elliptic mesh generation method.
Definitions of the input parameters are as follows:
- {model_name}
CONSTANT or SIMPLE_ABS
- {float_list}
See discussion below for the required number of floating point numbers and their meaning for each model.
- CONSTANT
takes one floating point number, \(val\), and returns that value for all inputs.
- SIMPLE_ABS
takes six floating point numbers, \(x_0\), \(a_1\), \(a_2\), \(a_3\), \(a_4\) and \(a_5\)
\(val = a_5 + \frac{a_1}{a_2 + a_3 * |x - x_0|} + a_4 * |x - x_0|}\)
- DUAL_ABS
takes five floating point numbers, \(x_0\), \(a_1\), \(a_2\), \(a_3\), \(a_4\)
\(val = a_4 + \frac{a_1}{a_2 + a_3 * (|x| - |x_0|)}\)
Examples#
The following is a sample card:
Elliptic geta = SIMPLE_ABS 0. 10.0 3.0 -1.0 0. 0.