FactorInteger[n] gives a list of the prime factors of the integer n, together with their exponents. FactorInteger[n, k] does partial factorization, pulling out at most k ...
FunctionSpace is an option for FindSequenceFunction and related functions that specifies the space of functions to consider for representations.
ImageDimensions[image] gives the pixel dimensions of the raster associated with an Image object image.
ItemStyle is an option for Grid, Column, and related constructs that specifies styles to use for items.
LanguageCategory is an option for Cell that determines in what category of language the contents of the cell should be assumed to be for purposes of spell checking and ...
LinkInterrupt[link] sends an interrupt to the program at the other end of the specified MathLink connection.
MemoryInUse[] gives the number of bytes currently being used to store all data in the current Mathematica kernel session. MemoryInUse[$FrontEnd] gives the number of bytes ...
NicholsGridLines is an option to NicholsPlot that specifies contours of constant magnitude and constant phase of the closed-loop system.
NumberFieldClassNumber[\[Theta]] gives the class number for the algebraic number field \[DoubleStruckCapitalQ][\[Theta]] generated by \[Theta].
NumberPadding is an option for NumberForm and related functions which gives strings to use as padding on the left- and right-hand sides of numbers.