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:
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Questions on the use of Mathematica to find integer/rational solutions to equations.
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Questions about interfacing Mathematica and Fortran. This also includes conversion of Fortran style numbers to Mathematica style.
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Questions on the wavelet analysis functions of Mathematica.
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Questions related to handling built-in symbols, for example why they behave a certain (possibly unexpected) way.
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Questions asking for a "big list" of examples, illustrations, etc. Please do not ask too many of these. Please do not use this as the only tag for a question.
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General guidelines and best practices for Mathematica usage and programming.
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Questions on the use of Mathematica to import, modify, and export XML documents.
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Frequently Asked Question – a tag for original questions which have a multitude of duplicates
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Questions on arithmetic operations in Mathematica.
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Tag for questions relating to the automatic document creations features of Mathematica
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Questions about or involving outside the range of normal machine precision, using Mathematica's capacity for arbitrary precision numbers and numbers outside the normal range of floating-point arithmet…
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Questions on using Mathematica functionality to take advantage of a Graphics Processing Unit, a special stream processor designed for highly parallel computer graphics operations.
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