,
xReturns the cosine of expr (expressed in radians).
Returns e to the power of expr.
Returns the integer portion of expr.
Returns the natural logarithm (base e) of expr.
Logically negates the truth value of expr.
Returns a random fractional number between 0 (inclusive) and the value of expr (exclusive). If expr is omitted, it defaults to 1.
Returns the sine of expr (expressed in radians).
Returns the square root of expr.
Sets the random number seed for the rand operator.
Returns the number of non-leap seconds since whatever time the system considers to be the epoch. Suitable for feeding to gmtime and localtime.