Class RadMath

Provides static mathematical functions and constants.

Inheritance

System.Object

RadMath

Namespace: Telerik.Charting

Assembly: Telerik.Windows.Controls.Chart.dll

Syntax

public static class RadMath : Object

Fields

DegToRadFactor

The factor used to convert degrees to their radians equivalent.

Declaration

public const double DegToRadFactor = 0.017453292519943295

Field Value

System.Double

Epsilon

Smallest unit such that 1.0+DBL_EPSILON != 1.0.

Declaration

public const double Epsilon = 2.2204460492503131E-09

Field Value

System.Double

RadToDegFactor

The factor used to convert radians to their degree equivalent.

Declaration

public const double RadToDegFactor = 57.295779513082323

Field Value

System.Double

Methods

AreClose(Double, Double)

Determines whether the two specified values are close within the order of EPSILON.

Declaration

public static bool AreClose(double value1, double value2)

Parameters

System.Double value1 The first value.

System.Double value2 The second value.

Returns

System.Boolean

AreClose(Double, Double, Double)

Determines whether the two specified values are close within the order of tolerance.

Declaration

public static bool AreClose(double value1, double value2, double tolerance)

Parameters

System.Double value1 The first value.

System.Double value2 The second value.

System.Double tolerance The allowed tolerance.

Returns

System.Boolean

GetArcPoint(Double, RadPoint, Double)

Gets the point that lies on the arc segment of the ellipse, described by the center and radius parameters.

Declaration

public static RadPoint GetArcPoint(double angle, RadPoint center, double radius)

Parameters

System.Double angle The arc segment angle.

RadPoint center The center of the ellipse.

System.Double radius The radius.

Returns

RadPoint

GetPointDistance(Double, Double, Double, Double)

Gets the distance between two points in a plane.

Declaration

public static double GetPointDistance(double x1, double x2, double y1, double y2)

Parameters

System.Double x1 The x-coordinate of the first point.

System.Double x2 The x-coordinate of the second point.

System.Double y1 The y-coordinate of the first point.

System.Double y2 The y-coordinate of the second point.

Returns

System.Double

GetPolarCoordinates(RadPoint, RadPoint, out Double, out Double)

Gets the polar coordinates (radius and angle) from the given arcPoint.

Declaration

public static void GetPolarCoordinates(RadPoint arcPoint, RadPoint center, out double radius, out double angle)

Parameters

RadPoint arcPoint The point in cartesian coordinates.

RadPoint center The center.

System.Double radius The distance from the center.

System.Double angle The angle in degrees.

Remarks

This is the reverse operation of GetArcPoint(Double, RadPoint, Double).

GetStandardDeviation(IEnumerable<Double>)

Gets the standard deviation of a set of numbers.

Declaration

public static double GetStandardDeviation(IEnumerable<double> values)

Parameters

System.Collections.Generic.IEnumerable<System.Double> values

Returns

System.Double

IsOne(Decimal)

Determines whether the specified value is close to 1 within the order of EPSILON.

Declaration

public static bool IsOne(Decimal value)

Parameters

System.Decimal value The value.

Returns

System.Boolean

IsOne(Double)

Determines whether the specified value is close to 1 within the order of EPSILON.

Declaration

public static bool IsOne(double value)

Parameters

System.Double value The value.

Returns

System.Boolean

IsZero(Decimal)

Determines whether the specified value is close to 0 within the order of EPSILON.

Declaration

public static bool IsZero(Decimal value)

Parameters

System.Decimal value The value.

Returns

System.Boolean

IsZero(Double)

Determines whether the specified value is close to 0 within the order of EPSILON.

Declaration

public static bool IsZero(double value)

Parameters

System.Double value The value.

Returns

System.Boolean