Numerical operations
Abs -- Returns the absolute value of a no.
Exp -- Returns the exponent of a no.
Log -- Returns the natural logarithm of a no.
Sgn -- Returns the sign of a no.
Sqr -- Returns the square root of a no.
Rnd -- Returns a random no. between 0 and 1
Cbool -- Convert a value to a Boolean value
Cdate -- Converts a value to a date value
CStr -- Converts a value to a string data type
Int -- Removes the fractional part of a real no.
Sin -- Returns the sine of an angle expressed in radians
Cos -- Returns the cosine of a no, expressed in radians
Atn -- Returns the arc tangent of an angle in radians