      ___________________________________________________________

      Calc Lite for OS/2

      Copyright (c) 1998 Magnus Olsson. All rights reserved.

      Scientific CLI Calculator for 32-bit OS/2
      ___________________________________________________________


      Description
      ===========

      The "Calc Lite" calculator is a freeware version of
      the command line calculator included in the shareware 
      WarpCalc. The only major difference is that this version
      is unsupported.


      System requirements
      ===================

      Calc Lite is a 32-bit OS/2 application and should run on 
      OS/2 version 2.x and above. 


      Licensing
      =========

      Calc Lite is freeware, but is copyrighted and not in the 
      public domain. Permission is granted to any individual or 
      institution to use, copy, or redistribute this software so 
      long as all of the original files are included unmodified, 
      that it is not sold for profit, and that this copyright 
      notice is retained.


      Documentation 
      =============

      The calculator can be passed a mathematical expression as
      a command line argument like this:

      calc pi

      The above command evaluates the name pi and displays the
      result using default settings. It then immediately returns
      to the command prompt.

      It is also possible to enter more than one expression at
      once, separating the different expressions with semicolons.

      calc "x= atan 2; sin x/cos x; tan x - ans"

      The first expression assigns the angle for tangens 2 to x.
      In the following expression the value of x is used to
      calculate tangens for x. The last expression should give
      the result zero (ans holds the result from the previous
      expression).

      When starting the calculator without passing any
      expressions the program will display a command prompt. From
      that prompt you can evaluate mathematical expressions and
      configure the calculators behavior. The prompt shows the
      angular unit currently used. Online help can be displayed 
      by entering the internal command 'help'. For a list of 
      help topics enter: 'help ?'.

      As a default the calculator uses a flexible result notation.
      Except for fix point notation the default precision is 15
      significant digits (fix point notation uses 15 decimals).
      The default angle measurement unit used in conjunction with 
      the trigonometric functions is radian. The defaults can be
      overridden through command line options as shown below.

      [ /not sci|fix|eng ][ /prec <n> ][ /unit deg|rad|gra ]

      To have the calculator use ANSI colors to highlight input 
      and results add the following switch.

      [ /color ]

      For U.S. based users there is also a switch to force the 
      calculator to use ISO signs for decimal separator,
      multiplication and the division.
 
      [ /iso ]

      Defaults for the command line switches can be set through
      the following environment variables: calc_not, calc_prec,
      calc_unit, calc_iso and calc_color. The options are the same
      as above except for calc_iso and calc_color, which take 
      either a yes or a no. All environment variables are case 
      insensitive.

      The internal command line works as follows. A block cursor 
      indicates over-write mode and a line cursor insert mode. 
      Escape erases the current input. Input history can be 
      navigated with the up/down- keys.


      Disclaimer
      ==========

      THIS PROGRAM IS PROVIDED AS IS AND COMES WITH NO WARRANTY
      OF ANY KIND, EITHER EXPRESSED OR IMPLIED. IN NO EVENT WILL
      THE COPYRIGHT HOLDER BE LIABLE FOR ANY DAMAGES RESULTING
      FROM THE USE OF THIS SOFTWARE.

      BECAUSE SOME JURISDICTIONS DO NOT ALLOW THE LIMITATIONS ON 
      IMPLIED WARRANTIES OR THE EXCLUSION OR LIMITATION OF 
      LIABILITY FOR CONSEQUENTIAL OR INCIDENTAL DAMAGES, THE 
      ABOVE LIMITATIONS MAY NOT APPLY TO YOU.
