CheckAbort[expr, failexpr] evaluates expr, returning failexpr if an abort occurs.
Masking
(Built-in Mathematica Symbol) Masking is an option for various image analysis and processing functions that specifies on which regions they should operate.
StreamColorFunctionScaling is an option for graphics functions that specifies whether arguments supplied to a stream color function should be scaled to lie between 0 and 1.
Unevaluated[expr] represents the unevaluated form of expr when it appears as the argument to a function.
RateOfChange
VolumeRateOfChange
CellGroupData[{cell_1, cell_2, ...}] is a low-level construct that represents an open group of cells in a notebook. CellGroupData[{cell_1, cell_2, ...}, 1] represents a cell ...
Circle
(Built-in Mathematica Symbol) Circle[{x, y}, r] is a two-dimensional graphics primitive that represents a circle of radius r centered at the point x, y. Circle[{x, y}] gives a circle of radius 1. ...
Interpretation[e, expr] represents an object that displays as e, but is interpreted as the unevaluated form of expr if supplied as input. Interpretation[{x = x_0, y = y_0, ...
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 ...