**Some
Notes on the Talking Graphing Calculator:**

When you run the Talking Graphing Calculator program, make sure the speakers are on

__A
Summary of The Talking Graphing Calculator.
__

The
Talking Graphing Calculator is designed to be used in two ways:
The main way is for a person with no vision using only the keyboard.
Another way is for a person with normal vision using the buttons and other
controls in the windows.

Both
are integrated in all the four windows in this program.
Because of this integration a person with partial vision can use both
ways.

The keyboard way is to use two letters to call up functions and commands. For some commands one character, and for some functions three characters are required. These are summarized below.

__Using the keyboard:
__

__Information on How to go from one Window to another:__
There are four Windows in this program. - A Calculator Window and an Information
Window for it, and an Equation to Graph Window and an Information window for it.

When you start the program you will be in the Calculator Window.

To get to the Equation to Graph Window from the Calculator Window
press the keys. G, then G. To
repeat, press G two times.

To get from the Equation to Graph Window to the Calculator Window
press the keys C, then C again; To repeat press C two times.

When you are in either the Calculator Window or in the Equation to
Graph Window and want to get to their respective Information Window, press the
key Z and Z again. To repeat Press Z two times.

To go from either of the Information Windows back to the Calculator
Window or the Equation to Graph Window press the nine key once.

__Information on how to change the voice qualities.
__

You must be in the Calculator Window for this.

To change the pitch Press V, then Press P.

To change the speed or how fast the voice speaks Press V, then
Press S.

To change the volume of the voice Press V, then again V.

To change the Type the voice Press V, then T.

Voice Type is indicated by integers from 1 to 16.

Experiment with different numbers.

The following is for the Calculator Window:

__Special Keys Information:__

For numbers, type the digits, decimal, e for power of ten, and the
tilde sign for negative. For
adding, subtracting, multiplying, dividing, mod, x to the power of y, and
integer division type the first number, then the symbol, then the second number,
then the equal sign.

Type M for mod.

Type X for x to the y.

Type backward slash for integer division.

To change the sign of a number Press: CS.
That is C, then S.

You use the minus sign to subtract, but for a negative sign DO NOT
use the minus sign, instead use the tilde key; which looks like a squiggly minus
sign. ~.

For the powers of ten symbol use small e, or large E.

Example: 2.34e26 OR
~2.34e~6.

To choose the number of decimal places you want in your answer
press ND

__Two letter abbreviations for the ____Calculator
Window____:__

__Keys information for trigonometry:
__

Key in the number first, then press the two letter keys for the
function.

The two letters for each function follows.

The default angle measure is the degree.

To choose either degrees or Radians Press DR.

Sine
SI

Cosine
CO

Tangent
TA

Inverse Sine or Arc Sine
IS

Inverse Cosine or Arc Cosine
IC

Inverse Tangent or Arc tangent
IT

Hyperbolic Sine (Sinh)
SH

Hyperbolic Cosine (Cosh)
CH

Hyperbolic Tangent(Tanh)
TH

__Keys information for other mathematical functions.
__

Key in the number first, then press the 2 letter keys for the
function.

The two letters for each function follows.

The default logarithm base is ten.

To choose another base
LB

Logarithm
LO

Inverse Logarithm
IL

Natural Logarithm
LN

Inverse Natural Logarithm
IG

Reciprocal or Inverse of a number
IN

Square of a number
SQ

Square Root
SR

Cube
CU

Cube Root
CR

Pi
PI

Random number
RN

Factorial
FA

Absolute Value
AB

Integer of a number
DI

__Keys Information for using the four memory functions:
__

One of the letters used for all four functions is N, not M"

To store a number in memory
SN

To add a number to the memory
AN

To Get a number from memory
GN

To Clear the Memory
CN

__Command Key Information:
__

To clear the numbers used so you can start with a new calculation
CL

To round off the current number
RO

To leave this program
LV

To hear the name of the author of this program
AU

__
__

__Two letter abbreviations for the ____Equation
to Graph Window____:
__

__
__

The default angle measure is the degree. To choose either degrees or Radians
DR

The default logarithm base is ten.

To choose another base
LB

To choose the number of decimal places

you want in your answer
ND

__Setting up the Equation.
__

In Equations: Use the minus sign to subtract, but for a negative
sign DO NOT use the minus sign. For the negative sign use the tilde key; that
looks like a squiggly minus sign. ~."

To type in the Equation
TP

To hear the Equation spoken
SA

Keys for various mathematical functions:

When necessary place open and closed brackets around any parts of
the equation. For instance grouping parts to be calculated first.
Brackets can include other brackets.

For numbers, use the regular digits from zero to 9, the period for
the decimal point, e for powers of ten, and tilde for the negative sign.

For adding
Plus key

For Subtracting
Minus
key

For multiplying
Asterisk
key

For dividing
Slash key

For Exponent
Exponent key, that is usually above the 6 on the keyboard

For integer division
Back Slash key

For X
simply use x

For the following use three letters:

For Sine
SIN

For Cosine
COS

For Tangent
TAN

For Inverse Tangent or Arc Tangent ATN

For Inverse Sine or Arc Sine
ASN

For Inverse Cosine Or Arc Cosine
ACS

For Logarithm. for various bases LOG

For Inverse Log
EXP

For Mod
MOD

For Hyperbolic Sine
SNH

For Hyperbolic Cosine
CSH

For Hyperbolic Tangent
TNH

__Using the Graph:
__

To tell the computer what to do will require a two letter press.

These are listed below:

For a new Start X for the Graph
SX

For a new Finished X for Graph
FX

For the Minimum Y, that is the

Lowest Y, shown on the Graph
LY

For the Maximum Y, that is the

Highest Y, shown on the Graph
HY

For the number of points wanted

on the Graph
NP

To actually Graph the equation
GR

To hear the graph
HG

To change the Note Duration

For hearing the graph
DU

To find the Y Value for a given X
YY

__In the Equation to Graph Window:
__

If you have partial vision it may be useful to check the

'Allow Large Print' checkbox in the upper, right corner.

This will cause the lettering to be enlarged for the part of the

Window over which you have the mouse.

If you attempt to change the numbers by clicking on a textbox, make
sure you keep the mouse and therefore the cursor in the area of the textbox,
otherwise you won't be able to change the number.

If you cannot see a graph you may have to change the x and y

ranges.

It is a good idea to experiment with various parts of each window.

In the two information Windows you can type the digits 0 to 9 in
the Calculator info Window, and you can type the digits 0 to 5 in the Equation
to Graph info Window to get specific information.

Enjoy,

Orland Hooge

Sardis (Chilliwack), BC

Canada

ohooge@shaw.ca