

Copyright (C) Tommy Pylant ssn 423942832.
May 1996,
All Rights Reserved.


 
To install this software just unzip it and copy the directory,
(MATHGF1) to your hard drive. After that, copy the mfc250.dll
to your c:\windows\system directory. Install the Icon and 
your ready to go. 
 
This is the first version of MathGraph. I hope it doesn't have any
bugs in it. The interface will work fine, but there might be a 
few bugs in the equation parser.  Trying to cover all the possible
combinations of factors in any given equation is a hard thing to
figure. I sat down and wrote this parser from scratch with few if
any source code from other projects for reference. Getting the 
parentheses levels to sort out in the right place at the right 
time proved to be pretty hard. For example consider these partial
equations:
5 - x
-(5-x)
-(-5-x)
(cos(-x))
-(cos(-x))
-(cos(-x-5))
Getting the parentheses to work in the right pattern with the 
negative sign operator proved to be the hardest part of the 
design process for the software. I'm still not sure if I've 
covered all the bases on it. I hope that MathGraph doesn't cause
you to mess up on a math homework problem or a business 
calculation. If it does, I hope you know that you use this 
shareware at your own risk. I regret the mistake, but I accept
no responsibility for it. The Help menu will give you all the
instructions for using the software.  The software was written
in Visual C++ vers. 1.52. There will probably be at least one
more version of MathGraph shareware. I want to add the capability
for saving the screen to a Bmp or Pcx file.  Then you could 
import any of the graphs straight into your homework with some desk
top publishing software or word processor. That would take care
of the need for printing also. There may be a version of Math
Graph called MathGraph Pro in a few months. It will not be share
ware, but it will be reasonably priced. This version of the share
ware is not free. I request that you send me $10.00 for its use.
If your in college, think about how much of your money goes for
tuition. If you flub a few homework problems because you did it
all with a hand calculator, think about the diference in your 
grades. Use MathGraph to study for tests. With MathGraph you can
cover 10 times as many example problems while studying than you
could with a hand calculator. If you cover 10 times as many 
problems, then figure how much better you will do on those finals.
If MathGraph makes just ONE letter grade diference in a whole 
year, (which it probably will), isn't it worth the $10.00 fee?
Pretty cheap compared to going down to the bookstore and paying
over $100.00 for MathCad or something else. MathGraph doesn't 
have all the frills of MathCad but it has a whole bunch of raw
calculating and graphing power. Please register and send $10.00
(ten dollars, cash, check or money order) to:      

Tommy Pylant
454 Riverton Dr.
Rainbow City AL. 35906.
ph# 205-442-5323

If you have any comments, questions, gripes, or found a bug you,
can email me at either of the following addresses as of 11/08/96.

tpylant@peop.tdsnet.com
Luvaone@aol.com

Thanks for trying MathGraph 1.0 and I hope you get a lot of good
use out of it.

