Math.Atan Method (Double)

 
System_CAPS_noteNote

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Returns the angle whose tangent is the specified number.

Namespace:   System
Assembly:  mscorlib (in mscorlib.dll)

static member Atan : 
        d:float -> float

Parameters

d
Type: System.Double

A number representing a tangent.

Return Value

Type: System.Double

An angle, θ, measured in radians, such that -π/2 θπ/2.

-or-

NaN if d equals NaN, -π/2 rounded to double precision (-1.5707963267949) if d equals NegativeInfinity, or π/2 rounded to double precision (1.5707963267949) if d equals PositiveInfinity.

A positive return value represents a counterclockwise angle from the x-axis; a negative return value represents a clockwise angle.

Multiply the return value by 180/Math.PI to convert from radians to degrees.

The following example demonstrates how to calculate the arctangent of a value and display it to the console.

No code example is currently available or this language may not be supported.

Universal Windows Platform
Available since 8
.NET Framework
Available since 1.1
Portable Class Library
Supported in: portable .NET platforms
Silverlight
Available since 2.0
Windows Phone Silverlight
Available since 7.0
Windows Phone
Available since 8.1
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