Section 1.1. Introduction

The Accessible Graphing Calculator is a self-voicing graphing scientific calculator. Unlike a hand-held calculator it displays results through speech and sounds as well as visually presenting numbers and graphs.  A Microsoft SAPI-compliant speech engine is required for this calculator to be self-voicing.

This program is intended to have capabilities comparable to a full-featured hand-held scientific and statistical graphing calculator. The Accessible Graphing Calculator has

• a Scientific Keypad Calculator,
• an expression Evaluator that includes the ability to define or import constants and expressions,
• two "data set" pages that permit the user to compute expressions, import and edit data tables, and compute a number of standard statistical properties,
• the ability to plot either data set, their sum or difference, or their first derivative,
• several display options for tone-graph audio plots,
• and the ability to be self-voicing.

There is also a context-sensitive help file that contains descriptions of every element. Pressing F1 while focus is on an object of interest will bring up the help information for that object.

Next: Section 1.2. Overview of the Calculator
Index