QUIK GUIDE to Dynamic Graph -3 steps-

There are several examples in the examples document

This program is based on Dynamic Graph for Casio 9850G, but taking
advantage of the TI89 power and cyclepic command (is faster than the

Casio built in program).

This prgm makes an animation (and then animates it) of any kind of
function containing an "a" parameter. For example: “a*log (x)”.
It can graph up to 3 circles too, using 2 kinds of circle formulas:
x^2+y^2+Ax+By+C, or the original with centre coordinates and radius

You can use a background at your choice; the program will "stamp" it
in the animation.

Cyclepic is very powerful, it can animate up to 100 frames per second!

But remember that the screen refresh is slow, so you won't see something
very clear at this speed. I recommend using 0.1 (10 frames/s) instead
of 0.01(100 f/s). Remember that the maximum of pictures cyclepic can use
is 50. If you overpass this limit, dina will only use the first 50 pictures.

Program: dina()

Files included: dyna.prgm, cfa.prgm, lim.prgm

These 3 files must be in main folder.

Memory: dina 951 bytes

cfa 287 bytes

lim 195 bytes

Total: 1433 bytes (only 1.4 kb)

HOW TO USE IT

Step 1)

If you want to use a background, you will need to edit it
and then save it as picture called "cc" (PICTURE, don't use GDB,
because it will re-graph the function instead of stamp it). (When
you run the program you can select to use background, it will only
use a picture called "cc")

Step 2)

Erase or deselect all the functions in the y= editor (same with any
defined function)

Write in the y= editor any function you want, they will need to have
one parameter (a). Don’t forget to put "*" even after "(…)"

(Example: a*(x+2))

Step 3)

Run the program. You will see this in the menu:

a) CREATE.

(The slowest part of the program, consist in define the a variable,
graph and save everything) It will create the animation of the functions
you have edited/defined. It will ask you to input some important info,
like first “a” value, final “a” value, steps of “a” value, etc.

Before starting this mechanism, the program will “Delete” (see below)

b) ANIMATE. This will work with an already made animation

c) DELETE. This will delete ONLY the variables and animations used

by the program

d) EXIT. This will exit the program WITHOUT deleting anything. After this, you

will be able to run the program again and then select “animate”. (See above)

I recommend seeing the examples. If you have any questions/suggestions

amalfi@i.com.uy

you can visit my website: www.geocities.com/ammarini (it’s not finished)

Don’t forget that is my first Basic program ...