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  1. TRIANGLE Triangle is a scientific math program with voice and tactile output designed for use by students and professionals in math, science, and engineering who are blind or have low vision. It is intended to provide a workspace for reading, writing, and manipulating mathematics. It uses GS (Gardner-Salinas) braille notation, a linear notation for scientific expressions with syntax modeled on the page markup language LaTeX, which is widely used by professional scientists and mathematicians. GS symbols t...[More Information]

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    • AbleData, 8630 Fenton Street, Suite 930, Silver Spring, MD 20910. 1-800-227-0216.
    Maintained for the National Institute on Disability and Rehabilitation Research of the U.S. Dept. of Education
    by ICF Macro under Contract No. ED-04-CO-0018/0007.

    The records in AbleData are provided for information purposes only. Neither the U.S. Department of Education nor ICF Macro has examined, reviewed, or tested any product, device, or information contained in AbleData. The Department and ICF Macro make no endorsement, representation, or warranty express or implied as to any product, device, or information set forth in AbleData. The views expressed on this site do not necessarily represent the opinions of the Department of Education, the National Institute on Disability and Rehabilitation Research, or ICF Macro.