p?test is a pattern object that stands for any expression which matches p, and on which the application of test gives True.

SeriesCoefficient[series, n] finds the coefficient of the n\[Null]\[Null]^th-order term in a power series in the form generated by Series. SeriesCoefficient[f, {x, x_0, n}] ...

Setting[expr] replaces control objects such as sliders or popup menus in expr by their settings.

Dt[f, x] gives the total derivative d f/d x. Dt[f] gives the total differential d f. Dt[f, {x, n}] gives the multiple derivative d^n f/d x^n. Dt[f, x_1, x_2, ...] gives d/d ...

GeometricDistribution[p] represents a geometric distribution with probability parameter p.

NegativeMultinomialDistribution[n, p] represents a negative multinomial distribution with parameter n and failure probability vector p.

When a differential system has a certain structure, it is advantageous if a numerical integration method preserves the structure. In certain situations it is useful to solve ...

DiscreteLQRegulatorGains[ss, {q, r}, \[Tau]] gives the optimal discrete-time state feedback gain matrix with sampling period \[Tau] for the continuous-time StateSpaceModel ...

New functions SymmetricPolynomial and SymmetricReduction have been added to the built-in Mathematica kernel.

Mathematica has immedate built-in access to extensive scientific and technical data—all carefully curated and updated at Wolfram Research.