functions abs erf int sin atan erfc log sqrt cos exp log10 tanhThe above math functions return a double precision value and take a double precision argument.
These functions call the library routines supplied by the compiler.
math
trigonometric function of radian argument.
mathtrigonometric function of radian argument.
see sin
mathreturns the arc-tangent of y/x in the range -PI/2 to PI/2. (x > 0)
mathhyperbolic tangent. see tanh for the Vector class.
mathlogarithm to the base e see log for the Vector class.
mathlogarithm to the base 10
see log10 for the Vector class.
mathreturns the exponential function to the base e
mathsquare root
see sqrt for the Vector class.
mathreturns the integer part of its argument (truncates toward 0).
mathabsolute value
mathnormalized error function @eqn \[{\rm erf}(z) = \frac{2}{\sqrt{\pi}} \int_{0}^{z} e^{-t^2} dt\] @endeqn
math
erf(z) but on sun machines computed by other methods
that avoid cancellation for large z.