Exam 1, Lecture 5

5 4 5 4 5 3 tan 3 tan es 2 computing in engineering 5

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Unformatted text preview: ore column when you push [o,o] 9 2.6627070295935037033 11 Mathcad Symbolic Evaluation If variables are assigned numerical values, Mathcad evaluates an expression numerically with a numerical result. x 1.23 y y (x 1) 6.999 2 2x 2 4x 1 Mathcad can also solve a range of problems symbolically. ( x 1) 2 3 2 2x 2 4x 1 simplify 3 2 2x 22x 33x 33 actor 2x x x f factor (2 x 3) (x ES 2 Computing in Engineering 1) (x x( 3x 2) 3 (x ) ( x 1 (2( 2x 3) ) ( x 11)(x 1)) x 1) expand 2x 3 3x 2 2x 3 12 Symbolic Evaluation – Do not use units Mathcad treats units as undefined variable names in symbolic calculations. It does not combine units of the same quantity unless they are the same unit, that is: m + m → 2m, but m + cm → m + cm.1 If you pass an expression with units to a symbolic function that expects only numbers, Mathcad returns an error. Don't use units in symbolic problems - diferentiation, integration, etc. 1Mathcad ES 2 Computing in Engineering 14 Help 13 Symbolic Evaluation - Keywords Use of Real vs. Integer c 9 t float 3 c 9 t t Replace specified variables...
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This note was uploaded on 04/02/2014 for the course ES 3 taught by Professor A during the Spring '08 term at Tufts.

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