Numerical Functions

Functions relating real numbers and integers.

Extracting integer and fractional parts.

(RefLink[IntegerPart, paclet:ref/IntegerPart])[x] and (RefLink[FractionalPart, paclet:ref/FractionalPart])[x] can be thought of as extracting digits to the left and right of the decimal point. (RefLink[Round, paclet:ref/Round])[x] is often used for forcing numbers that are close to integers to be exactly integers. (RefLink[Floor, paclet:ref/Floor])[x] and (RefLink[Ceiling, paclet:ref/Ceiling])[x] often arise in working out how many elements there will be in sequences of numbers with non-integer spacings.

Numerical functions of real variables.

Numerical functions of complex variables.