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1997-08-10
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___________________________________________________________
CALC for OS/2
Version 2.51
Copyright (c) 1997 Magnus Olsson. All rights reserved.
Released August '97
___________________________________________________________
Description / Quick documentation
=================================
This calculator program is focused on easy access and use.
The direct command line interface should make evaluating
mathematical expressions a breeze.
The calculator has 22 standard functions built-in. You can
also define your own temporary mathematical functions.
These functions can be called in exactly the same way as
the predefined ones. They can also be called from within
each other.
There are only three predefined variables: pi, e and ans.
I assume everyone knows the first two; the third one holds
the result of the last successful evaluation. The only
limit on how many variables you can define on your own is
the one set by the amount of memory available to the
program (and perhaps your imagination:). All variables has
the internal precision of at least 15 significant digits.
I have tried to make the program as self-explanatory as
possible. For the things that are not so obvious, like the
names of the 22 functions, there is help on-line. For basic
help you can enter help without any parameters.
As a default the calculator uses normal result notation
(flexible regarding the use of exponents). Except for fix
point notation the default precision is 15 significant
digits (for fix point notation it is 15 decimals). The
default angle measurement used in conjunction with the
trigonometric functions is degrees. The defaults can be
overridden through command line options as shown below.
calc [ /not sci|fix|eng ][ /prec <n> ][ deg|rad|gra ]
To view the command usage information you can enter:
calc /?
Starting with this version you can pass 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 value from the previous
expression).
Licensing
=========
This is shareware. You are allowed to freely use this piece
of software for a trial period of 30 days. If you decide to
use it even after this trial period have expired you must
register the software. The one-time cost of registration
grants You the right to use this version and any upgrades
on one computer a time. The price for a license is $15 (US).
Everyone who register before the 1st of November will also
be eligible for a free copy and licence to use the graphical
version to be released sometime before this date. You can
register by contacting the author.
Mail Orders To : Magnus Olsson
Verktumsgatan 6
S-421 36 V. FRÖLUNDA
SWEDEN
e-mail to : magnuso@ibm.net
By the time you read this you may also be able to register
through the best OS/2 shareware service on the Internet:
BMT Micro Inc. at: http://www.bmtmicro.com.
Thanks for supporting the wonderful concept of shareware!
Future
======
The future is, as always, much up to you, the users of this
program. Suggestions for improvement are Very welcome and
will be carefully considered (especially if they come from
registered users). Thanks again for using this program.
Disclaimer
==========
THIS PROGRAM IS PROVIDED AS IS AND COME 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.