TMtxExpression.EvaluateMatrix Method

Overload List

#	Signature	Description
1	function EvaluateMatrix: TMtx;	Evaluates all expressions from the list.
2	function EvaluateMatrix(Index: Integer): TMtx;	Evalutes expression at the specified index.

Overload 1: function EvaluateMatrix: TMtx;

Evaluates all expressions from the list.

Result: stored in self (calling object), returns self for chaining

Returns: result of the latest expression as matrix value.

Examples

uses MtxParseExpr, MtxExpr, MtxParseClass;

procedure Example(MyParser: TMtxExpression);
var A,B: TMatrixValue;
res: Matrix;
begin
    // 1. Define variables
    A := MyParser.DefineMatrix('A');
    B := MyParser.DefineDouble('B');

    // 2. Set values
    A.Value.SetIt(2,2,false,[2,1,3,0]);
    B.Value.SetIt(2,2,false,[1,0,1,1]);

    // 3. Add formula and evaluate,
    MyParser.AddExpr('A+2*B');
    res := MyParser.EvaluateMatrix;
    // res = (4,1; 5,2)
end;

Overload 2: function EvaluateMatrix(Index: Integer): TMtx;

Evalutes expression at the specified index.

#	Name	Type	Description
1	Index	Integer	start index

Result: stored in self (calling object), returns self for chaining

Returns: result as matrix value.