Overload List
| # | Signature | Description |
|---|---|---|
| 1 | TMtxVec *Cos(); | Cosine. |
| 2 | TMtxVec *Cos(int Index, int Len); | Calculate the cosine of calling object elements [Index]...[Index+Len-1] in-place. |
| 3 | TMtxVec *Cos(TMtxVec *X); | Calculate the cosine of all X object elements. |
| 4 | TMtxVec *Cos(TMtxVec *X, int XIndex, int Index, int Len); | Calculate the cosine of X object elements [XIndex]...[XIndex+Len-1]. |
Overload 1: TMtxVec *Cos();
Cosine.
Remarks:
Calculate the cosine of all caling object elements in-place.
Examples
#include "Units.MtxVec.h"
using namespace Dew;
using namespace Dew::Math;
using namespace Dew::Math::Units::MtxVec;
void Example()
{
TVec* a;
CreateIt(a);
a->SetIt(true, DewArray<double>{1,-2,3,4});
a->Cos(); // Computes complex sine
FreeIt(a);
}#include "Math387.h"
#include "MtxExpr.h"
using namespace Dew;
using namespace Dew::Math;
void Example()
{
Vector a;
a.SetIt(DewArray<double>{ 0.0, 0.523598775598299, 0.785398163397448, 1.0471975511966 });
a.Cos();
Vector expected;
expected.SetIt(DewArray<double>{ 1.0, 0.866025403784439, 0.707106781186548, 0.5 });
if (!a.IsEqual(expected, 1e-10, TCompare::cmpAbsolute))
throw tException("Vector.Cos: mismatch");
}See Also: TSparseMtx::ArcCos, TSparseMtx::SinCos
Declared in Dew::Math::TMtxVec · Dew.Math/AbstractMtxVec.h · Cross-compiler
Overload 2: TMtxVec *Cos(int Index, int Len);
Calculate the cosine of calling object elements [Index]...[Index+Len-1] in-place.
| # | Name | Type | Description |
|---|---|---|---|
| 1 | Index | int | |
| 2 | Len | int |
Remarks:
An exception is raised if array borders are overrun.
Declared in Dew::Math::TMtxVec · Dew.Math/AbstractMtxVec.h · Cross-compiler
Overload 3: TMtxVec *Cos(TMtxVec *X);
Calculate the cosine of all X object elements.
| # | Name | Type | Description |
|---|---|---|---|
| 1 | X | TMtxVec * |
Remarks:
Store the results in the calling object.vSize and TSparseMtx::Complex properties of 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>{ 0.0, 0.523598775598299, 0.785398163397448, 1.0471975511966 });
a.Cos(x);
Vector expected;
expected.SetIt(DewArray<double>{ 1.0, 0.866025403784439, 0.707106781186548, 0.5 });
if (!a.IsEqual(expected, 1e-10, TCompare::cmpAbsolute))
throw tException("Vector.Cos: mismatch");
}Declared in Dew::Math::TMtxVec · Dew.Math/AbstractMtxVec.h · Cross-compiler
Overload 4: TMtxVec *Cos(TMtxVec *X, int XIndex, int Index, int Len);
Calculate the cosine of X object elements [XIndex]...[XIndex+Len-1].
| # | Name | Type | Description |
|---|---|---|---|
| 1 | X | TMtxVec * | |
| 2 | XIndex | int | |
| 3 | Index | int | |
| 4 | Len | int |
Remarks:
The results are stored in calling object elements [Index]...[Index+Len-1]. Size and TSparseMtx::Complex properties of calling object and 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