SetPrecision[expr, p] yields a version of expr in which all numbers have been set to have precision p.

Simplifying with assumptions. Mathematica does not automatically simplify this, since it is only true for some values of x. Sqrt[x^2] is equal to x for x≥0, but not otherwise.

Do Basic Calculations Do Constrained Nonlinear Optimization Control the Precision and Accuracy of Numerical Results

HermiteH[n, x] gives the Hermite polynomial H_n (x).

XMLParser[root, " file"] represents a parser object created by InitializeXMLParser for XML documents with a root element root and corresponding to the DTD " file".

Expectation[expr, x \[Distributed] dist] gives the expectation of expr under the assumption that x follows the probability distribution dist. Expectation[expr, x ...

A method like "Newton's" method chooses a step, but the validity of that step only goes as far as the Newton quadratic model for the function really reflects the function. ...

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 ...

The Padé approximation is a rational function that can be thought of as a generalization of a Taylor polynomial. A rational function is the ratio of polynomials. Because ...

MapIndexed[f, expr] applies f to the elements of expr, giving the part specification of each element as a second argument to f. MapIndexed[f, expr, levelspec] applies f to ...