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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.
 Spring '08
 A

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