In most cases, you want the head f of a Mathematica expression like f[x] to be a single symbol. There are, however, some important applications of heads that are not symbols. ...

MIME type: application/dicom DICOM medical imaging format. Commonly used in medical imaging equipment and picture archiving and communication systems. DICOM is an acronym for ...

Image[data] represents a raster image with pixel values given by the array data.Image[graphics] creates a raster image from a graphics object. Image[obj, options] gives an ...

Format[expr] prints as the formatted form of expr. Assigning values to Format[expr] defines print forms for expressions. Format[expr, form] gives a format for the specified ...

ColorData["scheme"] gives a function that generates colors in the named color scheme when applied to parameter values. ColorData["scheme", " property"] gives the specified ...

Definition[symbol] prints as the definitions given for a symbol.

All the test problems presented in [MGH81] have been coded into Mathematica in the Optimization`UnconstrainedProblems` package. A data structure is used so that the problems ...

Missing[] represents data that is missing.Missing["reason"] specifies a reason for the data being missing.Missing["reason", expr] associates the expression expr with the ...

You can give Solve a list of simultaneous equations to solve. Solve can find explicit solutions for a large class of simultaneous polynomial equations. Here is a simple ...

SequenceAlignment[s_1, s_2] finds an optimal alignment of sequences of elements in the strings or lists s_1 and s_2, and yields a list of successive matching and differing ...