How is the function "sin" realized?

[lego13]

Hi.
Anybody can explain or show how is the function "sin" (or "sinf", "sinl") realized in C.
Intuition suggests that it should be somewhere in the math.h but I did not see anything there

[weaknessforcats]

They're there .

[muthuct8]

first we find the radians value, and radians value put on the sin function
example:
x=radians(angle ) // x= radians(0 degree)
y=sin(x) // y=sin(radians)