Function sin() calculates the sine value of a radian.

Arguments：

• Radian <number>

Returns：

• Sine <number>, ∈ [-1, 1]

Common Usage

Example: calculate the sine value of the radian 30°

return sin(30 * pi() / 180)

Example: calculate the sine values of a column of radians

uncollect [1, 2.5, 3] as a
return sin(a)