TSparseMtx::Floor Method

TSparseMtx Class

Overload List

#SignatureDescription
1TMtxVec *Floor();Rounds towards negative infinity.
2TMtxVec *Floor(int Index, int Len);Rounds calling object elements [Index]..[Index+Len-1] towards negative infinity in-place.
3TMtxVec *Floor(TMtxVec *Src);Rounds all Src object elements towards negative infinity and stores the result in the calling object.
4TMtxVec *Floor(TMtxVec *Src, int SrcIndex, int Index, int Len);Rounds Src object elements [SrcIndex]..[SrcIndex+Len-1] towards negative infinity and stores the result in the calling object elements [Index]..[Index+Len-1].

Overload 1: TMtxVec *Floor();

Rounds towards negative infinity.

Remarks:

Rounds all calling object elements towards negative infinity in-place.

Floor(-2.8) = -3

Floor(2.8) = 2

Floor(-1.0) = -1

Examples
#include "Math387.h"
#include "MtxExpr.h"

using namespace Dew;
using namespace Dew::Math;

void Example()
{
    Vector a;
    a.SetIt(DewArray<double>{ 1.2, 2.7, -0.5, 3.9 });
    a.Floor();
    Vector expected;
    expected.SetIt(DewArray<double>{ 1.0, 2.0, -1.0, 3.0 });
    if (!a.IsEqual(expected, 1e-10, TCompare::cmpAbsolute))
        throw tException("Vector.Floor: mismatch");
}
Declared in Dew::Math::TMtxVec · Dew.Math/AbstractMtxVec.h · Cross-compiler

Overload 2: TMtxVec *Floor(int Index, int Len);

Rounds calling object elements [Index]..[Index+Len-1] towards negative infinity in-place.

#NameTypeDescription
1Indexint
2Lenint
Remarks:

An exception is raised if array borders are overrun.

Declared in Dew::Math::TMtxVec · Dew.Math/AbstractMtxVec.h · Cross-compiler

Overload 3: TMtxVec *Floor(TMtxVec *Src);

Rounds all Src object elements towards negative infinity and stores the result in the calling object.

#NameTypeDescription
1SrcTMtxVec *
Remarks:

Size and TSparseMtx::Complex properties of the calling object are adjusted automatically.

Examples
#include "Math387.h"
#include "MtxExpr.h"

using namespace Dew;
using namespace Dew::Math;

void Example()
{
    Vector a;
    Vector x;
    x.SetIt(DewArray<double>{ 1.2, 2.7, -0.5, 3.9 });
    a.Floor(x);
    Vector expected;
    expected.SetIt(DewArray<double>{ 1.0, 2.0, -1.0, 3.0 });
    if (!a.IsEqual(expected, 1e-10, TCompare::cmpAbsolute))
        throw tException("Vector.Floor: mismatch");
}
Declared in Dew::Math::TMtxVec · Dew.Math/AbstractMtxVec.h · Cross-compiler

Overload 4: TMtxVec *Floor(TMtxVec *Src, int SrcIndex, int Index, int Len);

Rounds Src object elements [SrcIndex]..[SrcIndex+Len-1] towards negative infinity and stores the result in the calling object elements [Index]..[Index+Len-1].

#NameTypeDescription
1SrcTMtxVec *
2SrcIndexint
3Indexint
4Lenint
Remarks:

Size and TSparseMtx::Complex properties of the calling object must be set explicitly. An exception is raised if array borders are overrun.

Declared in Dew::Math::TMtxVec · Dew.Math/AbstractMtxVec.h · Cross-compiler