API sin

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Computes trigonometric functions.

sine = sin(degrees)
cosine = cos(degrees)
tangent = tan(degrees)

sine = math.sin(radians)
cosine = math.cos(radians)
tangent = math.tan(radians)

degrees = asin(sine)
degrees = acos(cosine)
degrees = atan(tangent)

radians = math.asin(sine)
radians = math.acos(cosine)
radians = math.atan(tangent)

Arguments/Returns

degrees

number - An angle expressed as 1/360 of a circle.

radians

number - An angle expressed as 1/(2*pi) of a circle.

sine, cosine, tangent

number - Ratios of lengths in a right-angled triangle.

Details

• WoW was originally developed on Lua 4.0, when all common functions were in the global namespace.
• Lua 5.0 introduced the math library and changed the trigonometric functions from degrees to radians.
• Despite transitioning to a variant of Lua 5.1 and incorporating the math library with radians, WoW retains the original functions with degrees.

Example

print(sin(0))                  -- 0
print(sin(90))                 -- 1
print(math.sin(math.pi/2))     -- 1
print(asin(1))                 -- 90
print(math.asin(1))            -- 1.5707963267949
print(math.asin(1) / math.pi)  -- 0.5

External links

The following links query Gethe's FrameXML clone on GitHub, or the Globe "wut?" tool on Townlong-Yak.

Function	FrameXML search queries
sin	FrameXML	Globe wut?
cos	FrameXML	Globe wut?
tan	FrameXML	Globe wut?
asin	FrameXML	Globe wut?
acos	FrameXML	Globe wut?
atan	FrameXML	Globe wut?
math.sin	Not available	Globe wut?
math.cos		Globe wut?
math.tan		Globe wut?
math.asin		Globe wut?
math.acos		Globe wut?
math.atan		Globe wut?