TMtx.Floor Method

Overload List

#	Signature	Description
1	TMtxVec Floor	Rounds towards negative infinity.
	└ indexed: TMtxVec Floor(Int32 Index, Int32 Len)
2	TMtxVec Floor(TMtxVec Src)	Rounds all Src object elements towards negative infinity and stores the result in the calling object.
	└ indexed: TMtxVec Floor(TMtxVec Src, Int32 SrcIndex, Int32 Index, Int32 Len)

Overload 1: TMtxVec Floor

Rounds towards negative infinity.

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

Remarks:

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

Floor(-2.8) = -3

Floor(2.8) = 2

Floor(-1.0) = -1

Examples

Matrix a = new Matrix();
a.SetIt(2, 2, false, new double[] { 1.2, 2.7, -0.5, 3.9 });
a.Floor();
Matrix expected = new Matrix();
expected.SetIt(2, 2, false, new double[] { 1.0, 2.0, -1.0, 3.0 });
if (!a.IsEqual(expected, 1e-10, TCompare.cmpAbsolute))
    throw new Exception("Matrix.Floor: mismatch");

Indexed: TMtxVec Floor(Int32 Index, Int32 Len)

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

#	Name	Type	Description
1	Index	Int32	start index
2	Len	Int32	element count

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

Remarks:

An exception is raised if array borders are overrun.

Overload 2: TMtxVec Floor(TMtxVec Src)

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

#	Name	Type	Description
1	Src	TMtxVec	source TVec or TMtx

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

Remarks:

Size and Dew.Math.TMtxVec.Complex properties of the calling object are adjusted automatically.

Examples

Matrix a = new Matrix();
Matrix x = new Matrix();
x.SetIt(2, 2, false, new double[] { 1.2, 2.7, -0.5, 3.9 });
a.Floor(x);
Matrix expected = new Matrix();
expected.SetIt(2, 2, false, new double[] { 1.0, 2.0, -1.0, 3.0 });
if (!a.IsEqual(expected, 1e-10, TCompare.cmpAbsolute))
    throw new Exception("Matrix.Floor: mismatch");

Indexed: TMtxVec Floor(TMtxVec Src, Int32 SrcIndex, Int32 Index, Int32 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].

#	Name	Type	Description
1	Src	TMtxVec	source TVec or TMtx
2	SrcIndex	Int32	source start index
3	Index	Int32	start index
4	Len	Int32	element count

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

Remarks:

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