AbortKernels[] aborts evaluations running in all parallel subkernels.
BoxMatrix[r] gives a (2 r + 1)*(2 r + 1) matrix of 1s.BoxMatrix[r, w] gives a (2 r + 1)*(2 r + 1) block of 1s centered in a w*w matrix of 0s.BoxMatrix[{r_1, r_2, ...}, ...] ...
ButtonBox[boxes] is a low-level box construct that represents a button in a notebook expression.
Clip
(Built-in Mathematica Symbol) Clip[x] gives x clipped to be between -1 and +1. Clip[x, {min, max}] gives x for min <= x <= max, min for x < min and max for x > max. Clip[x, {min, max}, {v_min, v_max}] ...
ContinuedFractionK[f, g, {i, i_min, i_max}] represents the continued fraction \[CapitalKappa]_i = i_min^i_max f/g.ContinuedFractionK[g, {i, i_min, i_max}] represents the ...
DesignMatrix[{{x_11, x_12, ..., y_1}, {x_21, x_22, ..., y_2}, ...}, {f_1, f_2, ...}, {x_1, x_2, ...}] constructs the design matrix for the linear model \[Beta]_0 + \[Beta]_1 ...
EvaluationObject[n, expr, ...] represents an expression submitted for evaluation on any available parallel kernel.
HoldFirst is an attribute which specifies that the first argument to a function is to be maintained in an unevaluated form.
InterpretationBox[boxes, expr] is a low-level box construct that displays as boxes but is interpreted on input as expr.
Intersection[list_1, list_2, ...] gives a sorted list of the elements common to all the list_i.