MathCad
Overview
 
Mathcad is computer software primarily intended for the verification, validation, documentation and re-use of engineering calculations. First introduced in 1986 on DOS
DOS
DOS, short for "Disk Operating System", is an acronym for several closely related operating systems that dominated the IBM PC compatible market between 1981 and 1995, or until about 2000 if one includes the partially DOS-based Microsoft Windows versions 95, 98, and Millennium Edition.Related...

, it was the first to introduce live editing of typeset mathematical notation, combined with its automatic computations. Mathcad today includes some of the capabilities of a computer algebra system
Computer algebra system
A computer algebra system is a software program that facilitates symbolic mathematics. The core functionality of a CAS is manipulation of mathematical expressions in symbolic form.-Symbolic manipulations:...

 but remains oriented towards ease of use and numerical engineering applications.
Mathcad, Parametric Technology Corporation
Parametric Technology Corporation
Parametric Technology Corporation is a U.S.-based company that develops, markets and supports software for product development. Its main products are for CAD/CAM, engineering calculations, and product lifecycle management. Its customers include companies in manufacturing, publishing, services,...

's engineering calculation solution, is used by engineers and scientists in various disciplines – most often those of mechanical, electrical, and civil engineering.
 
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