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Simple calculators

The basics of the calculators you (probably) have installed


  1. Simple perl calculator
  2. bc - an even simpler calculator
  3. Calculators you probably have installed


1. Simple perl calculator

  perl -e "print X*Y/Z+Ablah blah blah;"

Add ;echo to get a new line after the answer:

  perl -e "print (3010*2212)/987";echo
  6658120

Perl is available for (and installed by default on) all distributions.

2. bc - an even simpler calculator

BC is a supersimple calculator which can't do anything on it's own. Feed it with some numbers using echo, and bc calcultates them:

  echo '(3.14*781)+222' | bc
  2674.34

Simple bc tips: Use ' ' for calculations more advanced that 2+2. Use dot . instead of comma, .

3. Calculators you probably have installed

KDE: alt-F2 to run a command

xcalc calculator that comes with xfree

kcalc calculator that comes with kde

gnome-calculator calculator that comes with gnome

The irc client has an alias called /calc.

wmcalc is a nice Windowmaker docklet calculator.

Copyright (c) 2000-2004 Øyvind Sæther. 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 no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the section entitled "GNU Free Documentation License".


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