math.sin

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math.sin
Function
Syntax
math.sin()
Returns number
API math
Source Lua (source)

Returns the sine of num.

Note Note: The argument must be given in radians. If it is in degrees, use the math.rad function to convert it.

ExampleExamplePrint the sine of user input
Read a line from the user, convert it to radians using math.rad, then print its sine.
Code
print(math.sin(math.rad(tonumber(read())))
Output Depends on what the user wrote. For instance, if they were to enter 90, the number printed would be 1.