01-04-2010
The standard tools at universities include Maple, Matlab, and Mathematica. These all cost money and are usually licensed per CPU or per computer. A free version of Matlab, called Octave, exists on Linux; but to my knowledge, you can't exploit any kind of parallelism.
7 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
Hello one and all,
I have a basic background in UNIX, but I was wondering if there is a way to perform simple mathematical equations (like multiplication, addition)? If so, is there a way to multiply values from a column by a value to produce a column with the answers? :confused:
I am... (4 Replies)
Discussion started by: VioletFairy
4 Replies
2. UNIX for Dummies Questions & Answers
I am backing up some data to an NTFS formatted backup drive. I have to preserve the Unix permissions of the data being backed up and therfore use backup into a tar file.
I would like to backup the differnential data in the tar file similiar to how Rsync works so as to save on backup time as it... (1 Reply)
Discussion started by: jelloir
1 Replies
3. UNIX for Advanced & Expert Users
Hi,
Just wanted to know is there any way that we can take differential or incremental backups in Unix(Solaris/AIX/Linux or Hpunix).What is the procedure. Is any doc avaialble on this?
Its urgent and any help/suggestions would be highly appreciable.
Regards,
Ravi Dwivedi (3 Replies)
Discussion started by: dwiravi
3 Replies
4. UNIX for Dummies Questions & Answers
I really know barely anything about awk and the like but I have a bit of code I need help with.
The bash script is meant to get my usage numbers from my ISP and it does so perfectly. However I want to know how much I can use each day. So to do this I would need to divide its output by the number... (5 Replies)
Discussion started by: Light_
5 Replies
5. Shell Programming and Scripting
Hello all, this might be better suited for a bioinformatics forum, but I thought I'd try my luck here as well.
I have several tabular text files of DNA sequence reads that appear as such:
File_1.txt
>H01BA45XW GATTACAGATTCGACATCCAACTGAGGCATT
>H02BG78WR CCTTACAGACTGGGCATGAATATTGCATACC... (3 Replies)
Discussion started by: vectorborne5
3 Replies
6. UNIX for Dummies Questions & Answers
I'm using a script (automysqlbackup) to dump mysql db's to .sql file followed by taking one full backup of the .sql file and the differential backups of the newer sql file every day using the tool diff.
Now the backup destination folder contains files like,
I would like to how do i restore... (3 Replies)
Discussion started by: csengineer
3 Replies
7. Shell Programming and Scripting
I want to try solving system of linear algebraic equations in Shell bash but i have any problems Value input is matrix and I dont know how to input matrix in Shell because that is dont support 2-dimensional array Please help me. Thank you so much (3 Replies)
Discussion started by: newbieseos
3 Replies
LEARN ABOUT DEBIAN
gpiv_vorstra
GPIV_VORSTRA(1) General Commands Manual GPIV_VORSTRA(1)
NAME
gpiv_vorstra - Calculates the differential quantities vorticity, shear strain and normal strain from PIV data.
SYNOPSIS
gpiv_vorstra [-d N] [-h | --help] [-n | -o | -s] [--no_g ] [-p | --print] [-g | --g] [-v | --version] [filename] < stdin > stdout
DESCRIPTION
gpiv_vorstra calculates the differential quantities like vorticity, shear strain and normal strain from PIV data. You can choose from sev-
eral differential schemes: central differentiation, least squares, Richardson extrapolation and circulation method. Circulation method only
allows one to calculate vorticity, but no strain. The output can be generated as ASCII data containing four columns or as GNUPlot Data for-
mat that allows one to view/print the data as contour plots.
The configuration parameters (containing the POST key) may be overruled by the command line options, as explained below.
Options
-d N Differential type to be used: central difference (N=0), least squares (N=1), Richardson interpolation (N=2), circulation method
(N=3)
-h | --help
On-line help
-n Calculate normal strain of the PIV data. As an alternative the program may be called by its nickname gpiv_nstrain. In combination
with filename the output will be written to filename.nstr.
-o Calculate vorticity of the PIV data. As an alternative the program may be called by its nickname gpiv_vorty. In combination with
filename the output will be written to filename.vor.
-p | --print
Print parameters, command line options and eventually used input and output filenames to stdout. The output is identic of file-
name.par, in case filename is used.
-s Calculate shear strain of the PIV data. As an alternative the program may be called by its nickname sstrain. In combination with
filename the output will be written to filename.sstr.
-g Show contour plot of the output with gnuplot.
--no_g Suppresses to show contour plot of the output with gnuplot.
-v | --version
Print version information on standard output, then exit successfully.
filename
Input PIV data file. Overrides stdin and stdout. The output will be written to filename.vor with -o, filename.nstr with -n or file-
name.sstr with -s. Parameters are stored in filename.par and may be used for future use by including them in ./gpivrc.
SEE ALSO
gpivtools
AUTHOR
Gerber Van der Graaf
8 November 2006 GPIV_VORSTRA(1)