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TMtxExpression.DefineVector Method ([In] string, [In] TVec)
TMtxExpression Class  TMtxExpression Members  Dew.Math Namespace  DefineVector Method  Example  See Also
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Defines new vector variable.

Syntax
C#
Visual Basic
public TVectorValue DefineVector([In] string AVarName, [In] TVec Vec);
Remarks

If variable with name AVarName already was definded, it is redefined and all expressions which contain the symbol AVarName will be recompiled before the next evaluation. External vector may be assigned as values holder. If external vector is not assigned, internal vector will be used.

See Also
Example

Use parser to evaluate the "-s*x" formula where x(1,-1,1) is vector and s=0.5 scalar. To evaluate vector, use automatically generated vector.

using Dew.Math; using Dew.Math.Units; namespace Dew.Examples() { void Example() { // 1. Define variables TVectorValue = MyParser.DefineVector("x"); TDoubleValue s = MyParser.DefineDouble('s'); // 2. Set values x.Value.SetIt(false,new double[] {1,-1,1}); s.DoubleValue = 0.5; // 3. Add formula and evaluate, MyParser.AddExpr("-s*x"); Vector res = new Vector(0); res = MyParser.EvaluateVector(); // res = (-0.5,0.5, -0.5) } }
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