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  GRAPH3D PRO
===============
by TICalc Arts


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INTRODUCTION:
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This is the first and only 3D graphing program for TI calculators that has more
than one mode. This program will allow you to plot 3D graphs using Cartesian,
Polar, Cylindrical, and Spherical coordinates. And it's all under 3K of RAM! Ok,
except for the TI-86.

This program is available for the following calculators:
TI-73/82/83/83+/84+/CSE/CE/85/86


If there is enough interest, I may do the following:
- Add a parametric mode F(x(t),y(t),z(t))


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PLOTTING:
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When you run G3DPRO, you will be at the MODE select screen. Select a mode by using
the [F1]-[F4] keys. If a previous plot is available, you may press [ALPHA] when
prompted.

The 4 modes available are:
F1: Cartesian: Z(X,Y)
F2: Polar (or Conical): Z(R,theta)
F3: Cylindrical: R(Z,theta)
F4: Spherical: R(theta,phi)

After selecting a mode, you will be at the WINDOW screen. You can press the arrow
keys to select which window parameter you would like to change and press [ENTER].
From there, you can enter the value you want. Once you have the window settings
you want, you can press [F1] to enter the equation to plot. If you want to go
back to a different mode, press [F5] to go back.

After the WINDOW screen, you will be prompted to enter the equation you would like
to plot. The equation prompt will depend on the mode you selected. Enter the
equation using the variables displayed in the prompt.

Here are some example equations you can try using the default window settings:

Z(X,Y)=5cos(90/pi*sqrt(X^2+Y^2))	Note: Trig mode is auto-set to DEG.
Z(R,theta)=2sqrt(R)
Z(R,theta)=theta/60
R(Z,theta)=Z^2/6
R(Z,theta)=theta/60
R(theta,P)=5
R(theta,P)=P/60


For TI-73s and TI-82s only:
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When entering an equation, you MUST place a quote at the beginning of any equation
like this:
Z(X,Y)="5cos(90/pi*sqrt(X^2+Y^2))
R(theta,P)="5

Alternatively, you may put the equation into Y1 from the normal editor and press
[F3] in the window screen to "USE Y1".


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VIEWING:
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Note that X and Y are horizontal and vertical, respectively. Z is in and out of
the screen.

Arrows	= Rotate graph 15 degrees
8/2,4/6 = Rotate graph 90 degrees
[MODE]	= Toggle Wire/Dots
[ALPHA]	= Toggle Depth Perspective On/Off
[+]/[-] = Zoom In/Out
[ENTER] = Reset Zoom
[TRACE]	= Trace mode (not available for the TI-85)
[CLEAR]	= Quit

For the TI-85/86, the buttons may be slightly different.


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TRACING:
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When you enter TRACE mode, the equation will be displayed at the top of the screen
along with the values for each point selected. Press the arrow keys to select
different points in the plot. Press [ENTER] or [CLEAR] to exit trace mode.

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VERSION HISTORY:
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Ver:	2.1
Date:	11/11/2023
Notes:	Initial public release for TI-73/82/83/85/86.
	Update includes many speed and memory optimizations.
	Removed picture from main menu to save precious pic slots.

Ver:	2.0
Date:	10/10/2023
Notes:	Initial public release for TI-83/84+/CSE/CE.
	Includes many optimizations from ver 1.0.

Ver:	1.0
Date:	N/A
Notes:	Initial version never released to the public.


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CONTACT:
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ticalcarts@gmail.com
