Overload List
| # | Signature | Description |
|---|---|---|
| 1 | TMtxVec *ArcTan() const; | Inverse tangens. |
| 2 | TMtxVec *ArcTan(int Index, int Len) const; | Calculate the inverse tangens of calling object elements [Index]...[Index+Len-1] in-place. |
| 3 | TMtxVec *ArcTan(TMtxVec *X) const; | Calculate the inverse tangens of all X object elements. |
| 4 | TMtxVec *ArcTan(TMtxVec *X, int XIndex, int Index, int Len) const; | Calculate the inverse tangens of X object elements [XIndex]...[XIndex+Len-1]. |
Overload 1: TMtxVec *ArcTan() const;
Inverse tangens.
Remarks:
Calculate the inverse tangens for all calling object elements in-place. The return values are expressed in radians.
Examples
#include "Math387.h"
#include "MtxExpr.h"
using namespace Dew;
using namespace Dew::Math;
void Example()
{
Vector a;
a.SetIt(DewArray<double>{ 0.0, 0.5, 1.0, 2.0 });
a.ArcTan();
Vector expected;
expected.SetIt(DewArray<double>{ 0.0, 0.463647609000806, 0.785398163397448, 1.10714871779409 });
if (!a.IsEqual(expected, 1e-10, TCompare::cmpAbsolute))
throw tException("Vector.ArcTan: mismatch");
}#include "MtxExpr.h"
#include "Units.MtxExpr.h"
using namespace Dew;
using namespace Dew::Math;
using namespace Dew::Math::Units::MtxExpr;
void Example()
{
Vector A, B;
A.SetIt(true, DewArray<double>{1,0, 2,0,
2,0, 4,1}); // 4 element complex vector
B.ArcTan(A); // or
B = ArcTan(A); // or
A = ArcTan(A);
}Declared in Dew::Math::Vector · Dew.Math/MtxExpr.h · Cross-compiler
Overload 2: TMtxVec *ArcTan(int Index, int Len) const;
Calculate the inverse tangens 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.
Examples
#include "MtxExpr.h"
#include "Units.Math387.h"
#include "Units.MtxExpr.h"
using namespace Dew;
using namespace Dew::Math;
using namespace Dew::Math::Units::Math387;
using namespace Dew::Math::Units::MtxExpr;
void Example()
{
Vector A, B;
A = {Cplx(1, 0), Cplx(2, 0), Cplx(2, 0), Cplx(4, 1)}; // four complex values
B.ArcTan(A); // or
B = ArcTan(A); // or
A = ArcTan(A);
}Declared in Dew::Math::Vector · Dew.Math/MtxExpr.h · Cross-compiler
Overload 3: TMtxVec *ArcTan(TMtxVec *X) const;
Calculate the inverse tangens of all X object elements.
| # | Name | Type | Description |
|---|---|---|---|
| 1 | X | TMtxVec * |
Remarks:
Store the results in the calling object. Size and Vector::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, 0.5, 1.0, 2.0 });
a.ArcTan(x);
Vector expected;
expected.SetIt(DewArray<double>{ 0.0, 0.463647609000806, 0.785398163397448, 1.10714871779409 });
if (!a.IsEqual(expected, 1e-10, TCompare::cmpAbsolute))
throw tException("Vector.ArcTan: mismatch");
}Declared in Dew::Math::Vector · Dew.Math/MtxExpr.h · Cross-compiler
Overload 4: TMtxVec *ArcTan(TMtxVec *X, int XIndex, int Index, int Len) const;
Calculate the inverse tangens 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 Vector::Complex properties of the calling object must be set explicitly. An exception is raised if array borders are overrun.
Declared in Dew::Math::Vector · Dew.Math/MtxExpr.h · Cross-compiler