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Copyright (C) 2000-2012 Philippe Troin <webmaster@fifi.org>.
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SIN(x)
SIN function returns the sine of @x, where @x is given in radians.
This function is Excel compatible.
SIN(0.5) equals 0.479426.
COS, COSH, SINH, TAN, TANH, RADIANS, DEGREES.