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GRAPHIT!.DOC
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1994-09-01
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GRAPHIT! (TM) 6.0 by TTW (C) 1994
------------------=======≡≡≡≡≡≡≡≡
This program is designed to help trigonometry students or anyone with a need
to remember what a trig function graph looks like. It can be used as a study
aid. Just run it and see. It will give you 6 choices: Cosine, Sine, Tangent,
and Cotangent, Secant, and Cosecant. Choose which one you want and it will be
displayed for you. You must have at LEAST an EGA monitor.
First you get a great plane. Then, the program nicely asks you for what
function to graph. After, you can input certain details such as amplitude,
period, left / right shift, and up / down shift. (Use a negative number for
moving left or down.) Your details will be shown below, right of the graph.
If you don't feel like entering details, just push [ENTER] on any input. It
will default to an amplitude of 1 / period of 1 / shift of 0.
NEW!!! - Now GRAPHIT!'s shift and period can contain PI elements. Let's say
you want to shift it PI over 4 units to the right. When asked for the hori-
zontal shift, just type in `pi over 4' and it'll do it. When asked you can also
just push [F2]. It will type in `pi over ' and let you do the number. What if
you want PI itself. Just type [F2] and then 1 because PI / 1 is PI. The
number you enter CANNOT be zero ('cause how can you divide anything by 0?).
NEW!!! - Now you can specify the Y range. Let's say you want to graph some-
thing with an amplitude of 3. It won't just go up and disappear then come
back down. If you have the Y range set to 3, you'll see it. It asks for
range in the beginning and you can change it by pushing [R] at the function
selection screen.
NEW!!! - [F1] is help [F10] will exit
Actually if you want to exit, you need to push [F10] then a key.
This will take you to the SCREEN SCAN MODE but just type `N' and
you will be back at your O.S. Same goes with [F1] (push a key).
NEW!!! - Mouse support - Not required but it's there. Currently a mouse is
only useful for SCREEN SCAN MODE, or playing while it's graphing <g>.
NOTE: if you follow it graphing you might lose some parts of your
wave. may wipe out some screen elements.
NEW!!! - RELATIVE SCREEN SCAN MODE - You can now move the mouse to identify
what your pixel coordinates are. In the future, you will get the
actual relative GRAPH positions, rather than screen.
NEW!!! - Revised interface - while graphing, it shows you what coordinates it's
plotting. Also, the screen is (should be) self-cleaning (i.e., get's
rid of previous data).
BRAND NEW! - entertaining sound while graphing. If you want sound put a
`sound' on the command line. Make sure it is the last command
option. Ex: GRAPHIT! 10 sound
If you type a number (probably below 50) when GRAPHIT! asks for accuracy,
(default = 1) it will graph to that accuracy. However, it will take
more time to draw the pixels. You shouldn't really need to since [ENTER]
without a number makes it use the default which is pretty accurate. But it is
there (in case you have a Pentium <g>).
Consult TTWLICEN.EXE for licensing / distribution policies.
REGISTRATION
-=-=-=-=-=-=
Registration is required after 30 days. Is is $15 US.
To do so, run REGISTER.
After registering, you will soon receive a key that remove shareware messages
as well as other TTW products on disk.
INNOVATIONS
=-=-=-=-=-=
6.0 = New accuracy prompting.
5.2 = No more relative screen scan. Now has actual coordinates.
5.0 = Fixed problem with hanging, also fixed minor bugs.
4.5 = Fixed a few bugs. Is now SHAREWARE.
4.0 = Improved interface. Now defaults to NO Sound for faster graphing.
Sound can still be turned on.
3.2 = Added sound to graphing
3.1 = This is a totally revised version. So much that if we haven't been work-
ing on it for a while, we all forget and get lost in the HUGE code.
Don't worry, this new MOUSE version only adds 8k to the size. Also added
a user-specified vertical range. And the most important: you can now do
nonstandard shifts & periods using the input `PI OVER x'. It has a
relative screen scanning mode after the graph so you can see w/ the
mouse what the X and Y coordinates of the screen, not the graph, is like.
The screen's first column is less than the graph's column.
2.5 = Added [ESC] to graphing in case it takes forever.
2.0 = This is not a bug fix. This is totally rewritten to provide the user
with input. Amplitude, Period, and shift can be inputted. Graphs more
accurately. Accepts command-line input.
1.5 = Released Version. Did everything normally.
1.0 = Original version (N.R.)
-= Version & Date Updated:
»6:00
9/1/94«