Identity[expr] gives expr (the identity operation).

WorkingPrecision is an option for various numerical operations that specifies how many digits of precision should be maintained in internal computations.

Mathematica supports an extremely wide range of mathematical notation, although often it does not assign a predefined meaning to it. Thus, for example, you can enter an ...

General issues about the internal implementation of Mathematica are discussed in "The Internals of Mathematica". Given here are brief notes on particular features. These ...

Combining methods from set theory, topology, and discrete mathematics, mathematical morphology provides a powerful approach to processing images and other discrete data. ...

ToAdjacencyLists[g] constructs an adjacency list representation for graph g. ToAdjacencyLists[g, EdgeWeight] returns an adjacency list representation along with edge weights.

MathieuCharacteristicB[r, q] gives the characteristic value b_r for odd Mathieu functions with characteristic exponent r and parameter q.

SurvivalDistribution[{e_1, e_2, ...}] represents a survival distribution with event times e_i.SurvivalDistribution[{w_1, w_2, ...} -> {e_1, e_2, ...}] represents a survival ...

While differential equations have three basic types—ordinary (ODEs), partial (PDEs), or differential-algebraic (DAEs), they can be further described by attributes such as ...

These "How tos" give step-by-step instructions for common tasks related to solving differential equations in Mathematica .