Contents

GPPOISSON

NAME

gppoisson - Poisson's ratio calculator

SYNOPSIS

gppoisson [OPTIONS] [-nu|-vp|-vs]

DESCRIPTION

Compute Poisson's ratios from Vs and Vp, and vice-versa. It accepts two parameters per line on the stdin. The nature of the parameters depends on the option -nu, -vp, or -vs

: nu=(vs^2-0.5*vp^2)/(vs^2-vp^2)
vp=vs*sqrt(2*(nu-1)/(2*nu-1))
vs=vp*sqrt(0.5*(2*nu-1)/(nu-1))

Generic options:

-help: Show help about options
-version: Show version information
-reportbug: Start bug report dialog, information about bug is passed through stdin. This option is used internally to report bugs if option -nobugreport is not specified.
-nobugreport: Do not generate bug report in case of error

gppoisson options:

-nu (default): param1 is Vp, param2 is Vs, output is Poisson'ratio
-vp: param1 is Vs, param2 is Poisson'ratio, output is Vp
-vs: param1 is Vp, param2 is Poisson'ratio, output is Vs

EXAMPLES

echo 500 200 | gppoisson

Ouput 0.4, Poisson's ratio for Vp=500 m/s and Vs=200 m/s.

COPYRIGHT

Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation; with the Invariant Section being "GNU Free Documentation License". A copy of the license is found in geopsy manual in section entitled "GNU Free Documentation License".