EqualVariances is an option to statistical confidence interval and hypothesis test functions of two samples that specifies that unknown population variances are equal.

PlotLegend is an option for Plot, ListPlot, and related functions that assigns text to lines in a 2D plot to create a legend for that plot.

Mathematica provides a carefully chosen set of functions for accessing elements of lists either using indices or positions, or using patterns or criteria for their values.

Mathematica provides convenient and efficient system-independent functions for handling file-related constructs at all levels.

Annotation[expr, data] represents an expression expr, with annotation data.Annotation[expr, data, " type"] specifies the type of annotation being given.

FindFile[name] finds the file with the specified name that would be loaded by Get[name] and related functions.

FormatType is an option for output streams, graphics, and functions such as Text that specifies the default format type to use when outputting expressions.

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 ...

PlotRangeClipping is an option for graphics functions that specifies whether graphics objects should be clipped at the edge of the region defined by PlotRange, or should be ...

PreserveImageOptions is an option to graphics and related functions that specifies whether image size and certain other options should be preserved from the previous version ...