A tag is a keyword or label that categorizes your question with other, similar questions. Using the right tags makes it easier for others to find and answer your question.

Type to find tags:
× 136
Since version 7, Mathematica includes gigabytes of curated data relevant to many different fields, including physics, chemistry, graph theory, finance, geography and many more.
× 79
Customizing interaction, the front end, or other aspects of Mathematica manually or programmatically.
× 50
for questions about creating and using custom notations. For help on the use of the built-in operators, see syntax.
× 227 × 36
Questions on the use of Mathematica to capture data from external sources.
× 50
a toolkit for working with SQL databases built into Mathematica.
× 21
× 2 × 33
Specific forms of data storage and file types external to Mathematica.
× 3
× 113 × 86
Questions on using or implementing more or less common data structures such as linked lists, structs, trees, tries, heaps etc. in Mathematica.
× 13
Mathematica pseudo-types Integer, Real, Rational, Complex String and Symbol and their use.
× 120
Questions about Mathematica's date and time functions.
× 51
Questions about debugging techniques, using the built-in debugger, and/or the Wolfram Workbench debugger.
× 22
the process during which a piece of Mathematica code is prepared for distribution or for the internet.
× 14
× 12 × 31
special notebook windows of the Mathematica front end.
× 48
Tag for the usage of RSolve, ReccurenceTable, and implementation of finite difference method(FDM) in Mathematica
× 926
Questions on the symbolic (DSolve, DifferentialRoot) and numerical (NDSolve) solutions of differential equations in Mathematica.
× 25 × 21
Questions on the use of Mathematica to find integer/rational solutions to equations.
× 52
× 8 × 165
For questions about distributions built-in in Mathematica, and functions that operate on them. Also includes questions about defining your own distributions.
× 7
× 97
Questions about making your own documentation similar to the built-in documentation style. Also about finding things in the documentation, working with the documentation, errors in the documentation, …
× 16
Tag for questions relating to the automatic document creations features of Mathematica
× 2 × 24
Questions about DownValues which specify function definitions for symbols.
× 7