|* = SQRT(RDX)||square root.|
|* = LOG(RDX)||natural logarithm, i.e. log to base e (where e = 2.718281828...).|
|* = EXP(RDX)||returns the exponential, i.e. e to the power of the argument. This is the inverse of the natural logarithm.|
|* = LOG10(RD)||logarithm to base 10.|
Note that LOG10, which may be useful to compute decibel ratios etc., is the only one of this group which cannot be used on a complex argument.