NHoldAll

NHoldAll is an attribute which specifies that none of the arguments to a function should be affected by N.

NHoldAll, NHoldFirst and NHoldRest are useful in ensuring that arguments to functions are maintained as exact integers, rather than being converted by N to approximate numbers.

See The Mathematica Book: Section 2.5.3.

See also: NumericFunction, HoldAll.

Further Examples