Triangle is a DOS computer program intended for use by print-impaired students and professionals in science, engineering, and math. Triangle includes:
In the word processor, the keyboard or any assistive device/software that emulates a keyboard may be used for input. Triangle output may be viewed:
The primary purpose of TRIANGLE is to provide a workspace for reading, writing, and manipulating mathematics. The GS linear notation is used for scientific expressions. GS symbols that are not on the standard keyboard may be entered using a Braille keyboard option or several menu selection options.
The word processor has five different document buffers that provide basic editing capabilities, including search and cut and paste operations.
The calculator permits evaluation of most standard math expressions. Results are returned to the scratchpad buffer and may be cut and pasted to other documents. The calculator will also evaluate functions y versus x that can be viewed in audio.
The tone graph viewer has a number of options and provides a blind user with a quick semi-quantitative overview. A moving icon on the screen provides similar information for a deaf blind user when displayed as a moving cell on a braille display.
Click here for a picture of the Graph Viewer Screen
The table reader program allows two options for reading tables. One option, useful for reading tables with large cells, allows tables to be read cell by cell. The second option formats tables to be read line by line. The latter option is useful for small tables being read in Braille, but the first is usually preferable when speech synthesis is used or when tables are large. Tables may also be created or edited in this viewer.
Click here for a picture of the Table Viewer Screen.
The Touch-and-Tell program provides alternate-mode display for information presented visually in figures. The user selects an object or region on a figure that is mounted on a digitizing tablet. The touch-and-tell program then displays textual information about that object or region. This information can be read visually, audibly, or in Braille. Triangle supports the Nomad tablet, the Edmark Touch Window, and the MagicTouch touch screen digitizing tablets. The Objectif Windows authoring program was made to facilitate preparation of the files and tactile figures used with this viewer.
TRIANGLE was written by the Science Access Project at Oregon State University. It is Copyrighted and all rights are reserved. Triangle may be freely distributed as long as no fee is charged and all of the files are kept together and intact.