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}~B2 T T mathcad/worksheet.xml ( Converted from "Numeric vs. Symbolic Representations in Mathcad" created by Mathcad StaffIn-place Evaluation of Numeric DefinitionsPTC Mathcad Prime 2.0 allows you to combine numeric definitions and evaluations into one statement. What you used to have to do in two regions in earlier versions of Mathcad can now be done in one region with PTC Mathcad Prime 2.0:Mathcad 13PTC Mathcad Prime 2.0In addition to providing a more compact format for evaluating a definition, this allows you to bind the variable (b, above) to the result of the definition (in this case, 8), rather than to the definition itself.Symbolic Evaluation of Results of FunctionsSome functions, such as regress or var, can not be evaluated symbolically. When evaluated, the symbolic processor returns the expression, rather than a result:In PTC Mathcad Prime 2.0, you can instead bind the numeric result of var to the variable v, which gives you a more meaningful result:You can also use this notation to insert an intermediate value in an explicit result. In Mathcad 13, you needed to bind the intermediate symbolic evaluation to a numeric result with a complicated evaluation:PTC Mathcad Prime 2.0 allows you to write this example much more simply, as:One thing to keep in mind, though, is that you're binding a numeric result, which may be a rounded value. This can impact the results of symbolic calculations:This occurs because a is bound to the numeric value of e, which Mathcad rounds to 17 digits of precision. In the symbolic evaluation, Mathcad uses the full symbolic precision of e, which yields a more accurate result.PK
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