'Declaration Public Class UltraCalcFunctionTan Inherits BuiltInFunctionBase
public class UltraCalcFunctionTan : BuiltInFunctionBase
TAN(value)
Value is the angle measured in radians for which you want to take the tangent. If your argument must be in degrees, multiply it by PI()/180 to convert it into radians.
The tangent can have a value from -INF to +INF, however it is undefined at intervals of every PI()/2 radians +/- PI() radians.
The tangent function value derives from a well-known geometric ratio between the length of the opposite and the adjacent (non-hypotenuse) leg of a right triangle. All 3 angles inside of any triangle must add up to exactly PI() radians, and in a right triangle the angle opposite the hypotenuse must be PI()/2 radians. Given these facts, it is not possible for either of the other two angles within the triangle to reach PI()/2 radians themselves. If you choose an angle (other than the triangle's right angle) which approaches PI()/2 radians then the remaining angle must approach 0 radians. The tangent function value tells you in these circumstances how the leg of the right triangle opposite your angle approaches infinite length. These calculations have important applications in architecture and engineering.
Target Platforms: Windows 10, Windows 8.1, Windows 8, Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2