TVec.Frac Method — Dew Math

Overload List

#	Signature	Description
1	TMtxVec Frac	Fractional part of values.
	└ indexed: TMtxVec Frac(Int32 Index, Int32 Len)
2	TMtxVec Frac(TMtxVec X)	Calculates the fractional part for all X object values.
	└ indexed: TMtxVec Frac(TMtxVec X, Int32 XIndex, Int32 Index, Int32 Len)

Overload 1: TMtxVec Frac

Fractional part of values.

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

Remarks:

Calculates the fractional part for all object values in-place.

Examples

Vector a = new Vector();
a.SetIt(new double[] { 1.2, 2.7, -0.5, 3.9 });
a.Frac();
Vector expected = new Vector();
expected.SetIt(new double[] { 0.2, 0.7, -0.5, 0.9 });
if (!a.IsEqual(expected, 1e-10, TCompare.cmpAbsolute))
    throw new Exception("Vector.Frac: mismatch");

Vector a;
Integer ind;
a.SetIt(false,new double[] {1,5.5,-1.6,6}); // a = new double[] {1, 5.5, -1.6, 6}
a.Frac;  // a = new double[] {0, 0.5, -0.6, 0}

Indexed: TMtxVec Frac(Int32 Index, Int32 Len)

Calculates the fractional part for calling object elements [Index]..[Index+Len-1] 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 or underrun.

Overload 2: TMtxVec Frac(TMtxVec X)

Calculates the fractional part for all X object values.

#	Name	Type	Description
1	X	TMtxVec	source TVec or TMtx

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

Remarks:

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

Examples

Vector a = new Vector();
Vector x = new Vector();
x.SetIt(new double[] { 1.2, 2.7, -0.5, 3.9 });
a.Frac(x);
Vector expected = new Vector();
expected.SetIt(new double[] { 0.2, 0.7, -0.5, 0.9 });
if (!a.IsEqual(expected, 1e-10, TCompare.cmpAbsolute))
    throw new Exception("Vector.Frac: mismatch");

Indexed: TMtxVec Frac(TMtxVec X, Int32 XIndex, Int32 Index, Int32 Len)

Calculates the fractional part for X object elements [XIndex]..[XIndex+Len-1].

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

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

Remarks:

Stores the result in calling object elements [Index]..[Index+Len-1]. An exception is raised if array borders are overrun or underrun.