AppendTo[s, elem] appends elem to the value of s, and resets s to the result.
AutoItalicWords is an option for Cell that gives a list of words that should automatically be put in italics when they are entered.
BesselI
(Built-in Mathematica Symbol) BesselI[n, z] gives the modified Bessel function of the first kind I_n (z).
BinaryImageQ[image] yields True if image has the form of a binary image, and False otherwise.
CellChangeTimes is an option to Cell that specifies when changes were made to the cell.
CellDynamicExpression is an option for cells that specifies an expression to be dynamically updated whenever the cell is visible on-screen.
CellEpilog is an option for Cell which gives an expression to evaluate after each ordinary evaluation of the contents of the cell.
CellEvaluationDuplicate is an option for Cell which specifies whether the front end should make a copy of the cell before performing any evaluation of its contents that you ...
CellProlog is an option to Cell that gives an expression to evaluate before each ordinary evaluation of the contents of the cell.
CircleMinus[x, y] displays as x\[CircleMinus]y.