MtxExpr.DivAndSub Method

MtxExpr

Overload List

#SignatureDescription
1function DivAndSub(const X: TMtx; const Y: TMtxVec; const Z: TCplx): Matrix;Result = X/Y - zScalar, where X is a Matrix
2function DivAndSub(const X: TMtx; const Y: TMtxVec; const xyScale: TCplx; const Z: TCplx): Matrix;Result = (X / Y) * xyScale - zScalar, where X is a Matrix
3function DivAndSub(const X: TMtx; const Y: TMtxVec; const xyScale: TCplx; const Z: TMtxVec): Matrix;Result = X/Y*xyScale - Z, where X is a Matrix
4function DivAndSub(const X: TMtx; const Y: TMtxVec; const xyScale: TCplx; const Z: TMtxVec; const zScale: TCplx): Matrix;Result = (X / Y) * xyScale - Z*zScale, where X is a Matrix
5function DivAndSub(const X: TMtx; const Y: TMtxVec; const Z: TMtxVec): Matrix;Result = X/Y - Z, where X is a Matrix
6function DivAndSub(const X: TMtx; const Y: TMtxVec; const Z: TMtxVec; const zScale: TCplx): Matrix;Result = X/Y - Z*zScale, where X is a Matrix
7function DivAndSub(const X: TMtx; const Y: TMtxVec; const Z: TMtxVec; const zScale: Double): Matrix;Result = X/Y - Z*zScale, where X is a Matrix
8function DivAndSub(const X: TMtx; const Y: TMtxVec; const Z: Double): Matrix;Result = X/Y - zScalar, where X is a Matrix
9function DivAndSub(const X: TMtx; const Y: TMtxVec; const xyScale: Double; const Z: TMtxVec): Matrix;Result = X/Y*xyScale - Z, where X is a Matrix
10function DivAndSub(const X: TMtx; const Y: TMtxVec; const xyScale: Double; const Z: TMtxVec; const zScale: Double): Matrix;Result = (X / Y) * xyScale - Z*zScale, where X is a Matrix
11function DivAndSub(const X: TMtx; const Y: TMtxVec; const xyScale: Double; const Z: Double): Matrix;Result = (X / Y) * xyScale - zScalar, where X is a Matrix
12function DivAndSub(const X: TVec; const Y: TMtxVec; const Z: TCplx): Vector;Result = X/Y - zScalar
13function DivAndSub(const X: TVec; const Y: TMtxVec; const xyScale: TCplx; const Z: TCplx): Vector;Result = (X / Y) * xyScale - zScalar
14function DivAndSub(const X: TVec; const Y: TMtxVec; const xyScale: TCplx; const Z: TMtxVec): Vector;Result = X/Y*xyScale - Z
15function DivAndSub(const X: TVec; const Y: TMtxVec; const xyScale: TCplx; const Z: TMtxVec; const zScale: TCplx): Vector;Result = (X / Y) * xyScale - Z*zScale
16function DivAndSub(const X: TVec; const Y: TMtxVec; const Z: TMtxVec): Vector;Result = X/Y - Z
17function DivAndSub(const X: TVec; const Y: TMtxVec; const Z: TMtxVec; const zScale: TCplx): Vector;Result = X/Y - Z*zScale
18function DivAndSub(const X: TVec; const Y: TMtxVec; const Z: TMtxVec; const zScale: Double): Vector;Result = X/Y - Z*zScale
19function DivAndSub(const X: TVec; const Y: TMtxVec; const Z: Double): Vector;Result = X/Y - zScalar
20function DivAndSub(const X: TVec; const Y: TMtxVec; const xyScale: Double; const Z: TMtxVec): Vector;Result = X/Y*xyScale - Z
21function DivAndSub(const X: TVec; const Y: TMtxVec; const xyScale: Double; const Z: TMtxVec; const zScale: Double): Vector;Result = (X / Y) * xyScale - Z*zScale
22function DivAndSub(const X: TVec; const Y: TMtxVec; const xyScale: Double; const Z: Double): Vector;Result = (X / Y) * xyScale - zScalar

Overload 1: function DivAndSub(const X: TMtx; const Y: TMtxVec; const Z: TCplx): Matrix;

Compute X/Y - zScalar, where X is a Matrix

#NameTypeDescription
1XTMtx
2YTMtxVec
3ZTCplx

Returns: Matrix

Overload 2: function DivAndSub(const X: TMtx; const Y: TMtxVec; const xyScale: TCplx; const Z: TCplx): Matrix;

Compute (X / Y) * xyScale - zScalar, where X is a Matrix

#NameTypeDescription
1XTMtx
2YTMtxVec
3xyScaleTCplx
4ZTCplx

Returns: Matrix

Remarks:

The operation does only per-element math.

Overload 3: function DivAndSub(const X: TMtx; const Y: TMtxVec; const xyScale: TCplx; const Z: TMtxVec): Matrix;

Compute X/Y*xyScale - Z, where X is a Matrix

#NameTypeDescription
1XTMtx
2YTMtxVec
3xyScaleTCplx
4ZTMtxVec

Returns: Matrix

Overload 4: function DivAndSub(const X: TMtx; const Y: TMtxVec; const xyScale: TCplx; const Z: TMtxVec; const zScale: TCplx): Matrix;

Compute (X / Y) * xyScale - Z*zScale, where X is a Matrix

#NameTypeDescription
1XTMtx
2YTMtxVec
3xyScaleTCplx
4ZTMtxVec
5zScaleTCplx

Returns: Matrix

Remarks:

The operation does only per-element math.

Overload 5: function DivAndSub(const X: TMtx; const Y: TMtxVec; const Z: TMtxVec): Matrix;

Compute X/Y - Z, where X is a Matrix

#NameTypeDescription
1XTMtx
2YTMtxVec
3ZTMtxVec

Returns: Matrix

Remarks:

The operation does only per-element math.

Overload 6: function DivAndSub(const X: TMtx; const Y: TMtxVec; const Z: TMtxVec; const zScale: TCplx): Matrix;

Compute X/Y - Z*zScale, where X is a Matrix

#NameTypeDescription
1XTMtx
2YTMtxVec
3ZTMtxVec
4zScaleTCplx

Returns: Matrix

Overload 7: function DivAndSub(const X: TMtx; const Y: TMtxVec; const Z: TMtxVec; const zScale: Double): Matrix;

Compute X/Y - Z*zScale, where X is a Matrix

#NameTypeDescription
1XTMtx
2YTMtxVec
3ZTMtxVec
4zScaleDouble

Returns: Matrix

Remarks:

The operation does only per-element math.

Overload 8: function DivAndSub(const X: TMtx; const Y: TMtxVec; const Z: Double): Matrix;

Compute X/Y - zScalar, where X is a Matrix

#NameTypeDescription
1XTMtx
2YTMtxVec
3ZDouble

Returns: Matrix

Remarks:

The operation does only per-element math.

Overload 9: function DivAndSub(const X: TMtx; const Y: TMtxVec; const xyScale: Double; const Z: TMtxVec): Matrix;

Compute X/Y*xyScale - Z, where X is a Matrix

#NameTypeDescription
1XTMtx
2YTMtxVec
3xyScaleDouble
4ZTMtxVec

Returns: Matrix

Remarks:

The operation does only per-element math.

Overload 10: function DivAndSub(const X: TMtx; const Y: TMtxVec; const xyScale: Double; const Z: TMtxVec; const zScale: Double): Matrix;

Compute (X / Y) * xyScale - Z*zScale, where X is a Matrix

#NameTypeDescription
1XTMtx
2YTMtxVec
3xyScaleDouble
4ZTMtxVec
5zScaleDouble

Returns: Matrix

Remarks:

The operation does only per-element math.

Overload 11: function DivAndSub(const X: TMtx; const Y: TMtxVec; const xyScale: Double; const Z: Double): Matrix;

Compute (X / Y) * xyScale - zScalar, where X is a Matrix

#NameTypeDescription
1XTMtx
2YTMtxVec
3xyScaleDouble
4ZDouble

Returns: Matrix

Remarks:

The operation does only per-element math.

Overload 12: function DivAndSub(const X: TVec; const Y: TMtxVec; const Z: TCplx): Vector;

Compute X/Y - zScalar

#NameTypeDescription
1XTVec
2YTMtxVec
3ZTCplx

Returns: Vector

Overload 13: function DivAndSub(const X: TVec; const Y: TMtxVec; const xyScale: TCplx; const Z: TCplx): Vector;

Compute (X / Y) * xyScale - zScalar

#NameTypeDescription
1XTVec
2YTMtxVec
3xyScaleTCplx
4ZTCplx

Returns: Vector

Remarks:

The operation does only per-element math.

Overload 14: function DivAndSub(const X: TVec; const Y: TMtxVec; const xyScale: TCplx; const Z: TMtxVec): Vector;

Compute X/Y*xyScale - Z

#NameTypeDescription
1XTVec
2YTMtxVec
3xyScaleTCplx
4ZTMtxVec

Returns: Vector

Overload 15: function DivAndSub(const X: TVec; const Y: TMtxVec; const xyScale: TCplx; const Z: TMtxVec; const zScale: TCplx): Vector;

Compute (X / Y) * xyScale - Z*zScale

#NameTypeDescription
1XTVec
2YTMtxVec
3xyScaleTCplx
4ZTMtxVec
5zScaleTCplx

Returns: Vector

Remarks:

The operation does only per-element math.

Overload 16: function DivAndSub(const X: TVec; const Y: TMtxVec; const Z: TMtxVec): Vector;

Compute X/Y - Z

#NameTypeDescription
1XTVec
2YTMtxVec
3ZTMtxVec

Returns: Vector

Remarks:

Divides X by Y element-wise and then subtracts Z, all without creating temporary objects.

Examples
uses MtxVec, MtxExpr, Math387;

var
    X, Y, Z, A1, A2, A3: Vector;
begin
    X := [6,8,10,12];
    Y := [2,2,2,2];
    Z := [1,1,1,1];
    A1 := (X / Y) - Z;             // using operators
    A2 := DivAndSub(X, Y, Z);       // using the function
    A3.DivAndSub(X, Y, Z);          // in-place operation
    if not A2.IsEqual(A1) then ERaise('Problem');
    if not A3.IsEqual(A1) then ERaise('Problem');
end;

Overload 17: function DivAndSub(const X: TVec; const Y: TMtxVec; const Z: TMtxVec; const zScale: TCplx): Vector;

Compute X/Y - Z*zScale

#NameTypeDescription
1XTVec
2YTMtxVec
3ZTMtxVec
4zScaleTCplx

Returns: Vector

Overload 18: function DivAndSub(const X: TVec; const Y: TMtxVec; const Z: TMtxVec; const zScale: Double): Vector;

Compute X/Y - Z*zScale

#NameTypeDescription
1XTVec
2YTMtxVec
3ZTMtxVec
4zScaleDouble

Returns: Vector

Remarks:

Divides X by Y element-wise and then subtracts Z multiplied by zScale, all without creating temporary objects.

Examples
uses MtxVec, MtxExpr, Math387;

var
    X, Y, Z, A1, A2, A3: Vector;
    zScale: Double;
begin
    zScale := 2.0;
    X := [6, 8, 10, 12];
    Y := [2, 2, 2, 2];
    Z := [1, 1, 1, 1];
    A1 := (X / Y) - (Z * zScale);
    A2 := DivAndSub(X, Y, Z, zScale);
    A3.DivAndSub(X, Y, Z, zScale);
    if not A2.IsEqual(A1) then ERaise('Problem');
    if not A3.IsEqual(A1) then ERaise('Problem');
end;

Overload 19: function DivAndSub(const X: TVec; const Y: TMtxVec; const Z: Double): Vector;

Compute X/Y - zScalar

#NameTypeDescription
1XTVec
2YTMtxVec
3ZDouble

Returns: Vector

Remarks:

Divides X by Y element-wise and then subtracts the scalar zScalar, without creating temporary objects.

Examples
uses MtxVec, MtxExpr, Math387;

var
    X, Y, A1, A2, A3: Vector;
    zScalar: Double;
begin
    zScalar := 2.0;
    X := [6, 8, 10, 12];
    Y := [2, 2, 2, 2];
    A1 := (X / Y) - zScalar;
    A2 := DivAndSub(X, Y, zScalar);
    A3.DivAndSub(X, Y, zScalar);
    if not A2.IsEqual(A1) then ERaise('Problem');
    if not A3.IsEqual(A1) then ERaise('Problem');
end;

Overload 20: function DivAndSub(const X: TVec; const Y: TMtxVec; const xyScale: Double; const Z: TMtxVec): Vector;

Compute X/Y*xyScale - Z

#NameTypeDescription
1XTVec
2YTMtxVec
3xyScaleDouble
4ZTMtxVec

Returns: Vector

Remarks:

Divides X by Y element-wise, multiplies the quotient by xyScale, and then subtracts Z, without creating temporary objects.

Examples
uses MtxVec, MtxExpr, Math387;

var
    X, Y, Z, A1, A2, A3: Vector;
    xyScale: Double;
begin
    xyScale := 1.5;
    X := [8,10,12,14];
    Y := [2,2,2,2];
    Z := [1,1,1,1];
    A1 := (X / Y) * xyScale - Z;
    A2 := DivAndSub(X, Y, xyScale, Z);
    A3.DivAndSub(X, Y, xyScale, Z);
    if not A2.IsEqual(A1) then ERaise('Problem');
    if not A3.IsEqual(A1) then ERaise('Problem');
end;

Overload 21: function DivAndSub(const X: TVec; const Y: TMtxVec; const xyScale: Double; const Z: TMtxVec; const zScale: Double): Vector;

Compute (X / Y) * xyScale - Z*zScale

#NameTypeDescription
1XTVec
2YTMtxVec
3xyScaleDouble
4ZTMtxVec
5zScaleDouble

Returns: Vector

Remarks:

Divides X by Y, scales the quotient by xyScale, then subtracts Z scaled by zScale, all without temporary objects.

Examples
uses MtxVec, MtxExpr, Math387;

var
    X, Y, Z, A1, A2, A3: Vector;
    xyScale, zScale: Double;
begin
    xyScale := 1.5;
    zScale := 2.0;
    X := [8,10,12,14];
    Y := [2,2,2,2];
    Z := [1,1,1,1];
    A1 := (X / Y) * xyScale - Z * zScale;
    A2 := DivAndSub(X, xyScale, Y, xyScale, Z, zScale);
    A3.DivAndSub(X, xyScale, Y, xyScale, Z, zScale);
    if not A2.IsEqual(A1) then ERaise('Problem');
    if not A3.IsEqual(A1) then ERaise('Problem');
end;

Overload 22: function DivAndSub(const X: TVec; const Y: TMtxVec; const xyScale: Double; const Z: Double): Vector;

Compute (X / Y) * xyScale - zScalar

#NameTypeDescription
1XTVec
2YTMtxVec
3xyScaleDouble
4ZDouble

Returns: Vector

Remarks:

Computes the expression (X divided by Y) multiplied by xyScale and then subtracts the scalar zScalar, all without temporary objects.

Examples
uses MtxVec, MtxExpr, Math387;

var
    X, Y, A1, A2, A3: Vector;
    xyScale, zScalar: Double;
begin
    xyScale := 1.5;
    zScalar := 2.0;
    X := [8,10,12,14];
    Y := [2,2,2,2];
    A1 := (X / Y) * xyScale - zScalar;
    A2 := DivAndSub(X, xyScale, Y, xyScale, zScalar);
    A3.DivAndSub(X, xyScale, Y, xyScale, zScalar);
    if not A2.IsEqual(A1) then ERaise('Problem');
    if not A3.IsEqual(A1) then ERaise('Problem');
end;