IdealDivide[x, y] gives the correctly rounded result of x divided by y involving a single rounding error.
MachineError[f, x -> a] gives the error involved in evaluating f at x = a using machine arithmetic.
Truncation is a setting for the option RoundingRule of SetArithmetic that specifies rounding by discarding excess digits.
BesselSimplify[expr] transforms Bessel functions in expr, trying to either decrease the number of Bessel functions, or convert Bessel functions into more elementary functions.
FromPackedArray[expr] unpacks expr so that its internal representation is not a packed array.
NotebookConvert["name"] converts a Mathematica notebook from a previous version of Mathematica to one for the current version.
TrigToRadicals[expr] converts trigonometric functions to radicals whenever possible in expr.
CompileEvaluate[expr] compiles expr and then evaluates the resulting compiled code.
ImpliesQ[expr_1, expr_2] tests whether the expression expr_1 implies expr_2.
ElementToPolynomial[e, s] gives a polynomial in the symbol s corresponding to the field element e.ElementToPolynomial[f, s] gives the irreducible polynomial in s of the field ...