ImagePartition[image, s] partitions an image into an array of s*s-pixel subimages.ImagePartition[image, {w, h}] partitions an image into an array of subimages of pixel width ...

ImageTake[image, n] gives an image consisting of the first n rows of image.ImageTake[image, -n] gives an image consisting of the last n rows of image.ImageTake[image, {row_1, ...

ImageValue[image, {x, y}] gives the pixel value of image at position {x, y}.ImageValue[image, {x, y}, " type"] gives the pixel value converted to the specified type.

InterpretationBox[boxes, expr] is a low-level box construct that displays as boxes but is interpreted on input as expr.

LatticeData[lattice, " property"] gives the specified property for a lattice.LatticeData[n] gives a list of named lattices of dimension n.

MakeExpression[boxes, form] is the low-level function used in Mathematica sessions to construct expressions from boxes.

MaxwellDistribution[\[Sigma]] represents a Maxwell distribution with scale parameter \[Sigma].

Notebook[{cell_1, cell_2, ...}] is the low-level construct that represents a notebook manipulated by the Mathematica front end.

Orderless is an attribute that can be assigned to a symbol f to indicate that the elements e_i in expressions of the form f[e_1, e_2, ...] should automatically be sorted into ...

OverscriptBox[x, y] is the low-level box representation for OverscriptBox[x, y] in notebook expressions.