Method Atan2

Atan2(BigRational, BigRational, Int32)

Returns the angle whose tangent is the quotient of two specified numbers.

Declaration

public static BigRational Atan2(BigRational y, BigRational x, int digits)

Parameters

Type	Name	Description
BigRational	y	The y coordinate of a point.
BigRational	x	The x coordinate of a point.
System.Int32	digits	The maximum number of fractional decimal digits in the return value.

Returns

Type

Description

BigRational

An angle, θ, measured in radians, such that -π ≤ θ ≤ π, and tan(θ) = y / x, where (x, y) is a point in the Cartesian plane. Observe the following: For (x, y) in quadrant 1, 0 < θ < π/2. For (x, y) in quadrant 2, π/2 < θ ≤ π. For (x, y) in quadrant 3, -π < θ < -π/2. For (x, y) in quadrant 4, -π/2 < θ < 0. For points on the boundaries of the quadrants, the return value is the following: If y is 0 and x is not negative, θ = 0. If y is 0 and x is negative, θ = π. If y is positive and x is 0, θ = π/2 If y is negative and x is 0, θ = -π/2. If y is 0 and x is 0, θ = 0.

Remarks

Note: In the current version, the function has not yet been finally optimized for performance
and the accuracy of the last digits has not yet been ensured!

Atan2(BigRational, BigRational)

Computes the arc-tangent of the quotient of two values.

Declaration

public static BigRational Atan2(BigRational y, BigRational x)

Parameters

Type	Name	Description
BigRational	y	The y-coordinate of a point.
BigRational	x	The x-coordinate of a point.

Returns

Type	Description
BigRational	The arc-tangent of y divided by x.

Remarks

Part of the new NET 7 number type system."/>.
The desired precision can preset by MaxDigits