As others noted - this has the potential to be hellishly complex.
you could write a simple perl frontend to pari using one of it's interfaces, if you have to use perl. Pari interprets algebraic statements and then can work with them.
Heres a script i wrote as a bit of practise. What it does is insert a line in the middle of a file. The line being $1 and the file being $2
#!/bin/bash
rm tempfile
touch tempfile
count=1
linenum= `wc -l < $2`
if
then
echo $1 >> $2
else
even=`expr "$linenum" % 2`
if
then... (3 Replies)
Hay, guys,
Any ideas how to calculate like this:
in first file, there're number of lines listing 2+3, 6*9 .......
Then, how to get the result and put them in another file in format:
2+3 5
6*9 54
......
sheerly by shell command, no scripts required. (4 Replies)
Hi,
Is there a way to evaluate an equation contained in a string within an AWK script?
For example:
A = "(5*2)-1" (this equation is read from a file and varies line by line)
In this example, I can't see any way to get an answer of 9 unless I do:
cmd = "awk 'BEGIN{print "A"}'"
cmd |... (3 Replies)
Hello,
I'm trying to write a while loop for a decimal value in tcsh which I know can't be done. Instead I want my increments to be one order of magnitude too large and then divide it by 10 when I use the variable. However, I don't know how to divide my variable and set it as another.
set... (1 Reply)
I'm running a MPI program using a cluster of 4 machines(different machines of different processing power,cpu utilization etc.). I'm trying to balance the computation among the machine to get the minimum execution time for that. I tried to balance it by creating a threshold value by taking the load... (1 Reply)
Hi All
I've made a few scripts which using GDAL extract the value of a pixel within a given raster. The purpose is to work out the combine value of every pixel. I thought there may have been an easier way to do this but alas!
The code below extracts the pixel value at position X Y. The... (3 Replies)
Hi, I am trying to make a maths calculator that:
1. Prompts the user for a number.
2. Prompts the user for an operation (add, subtract, divide or multiply)
3. Prompts the user for a number.
4. Prompts the user for another operation (same as above) OR the option to get the result for the... (4 Replies)
Hi,
Need help on this. I need to increment a variable by 1 but retain as 2 characters.
I am using expr to do additions:
NEWSERIAL=`expr $SERIAL + 1`
$SERIAL can range from 01-99. After adding "1", I need the result to be 2 characters, eg: 02+1 = 03. By default expr will truncate the... (4 Replies)
HI All,
I have a script in bash that i want that script will perform action
When the size of a particular folder exceeds the 80%.
Here is an example of script that result is exactly 80% :
#!/bin/bash
CHECK=$(df -h /var/log/syslog | grep '80%' | xargs echo | cut -d' ' -f5)
if ];... (1 Reply)
Hi guys...
I am loving this integer maths thing.
64 bit systems are certainly easier than 32 bit, but hey, I don't intend to leave out my fav' platform.
Using one of the 'Brothers' methods, URL inside the code.
#!/bin/sh
#
# #!/usr/local/bin/dash
# e_constant.sh
# Brother's formula .
#... (2 Replies)
Discussion started by: wisecracker
2 Replies
LEARN ABOUT DEBIAN
clfswm
CLFSWM(1)CLFSWM(1)NAME
clfswm - A(nother) Common Lisp Full Screen Window Manager
SYNOPSIS
clfswm [implementation]
DESCRIPTION
CLFSWM is a 100% Common Lisp X11 window manager (based on Tinywm and Stumpwm. Many thanks to them). It can be driven only with the keyboard
or with the mouse.
CLFSWM uses the following rules to determine which implementation should be used:
1. the first command line argument.
2. environment variable $LISP
3. the first line like "debian=<impl>" in its configuration file.
4. clisp
CLFSWM handles clisp, sbcl and cmucl internally. If you specify a different implementation, CLFSWM will try to execute the command
clfswm-<implementation>. See /usr/share/doc/clfswm/README.Debian for details.
OPTIONS
implementation
Indicates which implementation should be used.
ENVIRONMENT
LISP
Indicates which implementation should be used.
FILES
$XDG_CONFIG_HOME/clfswm/clfswmrc
User configuration file. If XDG_CONFIG_HOME is undefined, $HOME/.config/clfswm/clfswmrc will be used.
$HOME/.clfswmrc
Deprecated. This file will be used only if the previous file does not exist.
/etc/clfswmrc
System-wide configuration file.
SEE ALSO clisp(1), sbcl(1), cmucl(1).
AUTHOR
CLFSWM was written by Philippe Brochard <pbrochard@common-lisp.net>.
This manual page was written by Desmond O. Chang <dochang@gmail.com>, for the Debian project (and may be used by others).
12/04/2011 CLFSWM(1)