SpokenString[expr] gives a string of text corresponding to a spoken representation of the expression expr.
TautologyQ[bf] gives True if all combinations of values of variables make the Boolean function bf yield True.TautologyQ[expr, {a_1, a_2, ...}] gives True if all combinations ...
ByteCount[expr] gives the number of bytes used internally by Mathematica to store expr.
LaguerreL[n, x] gives the Laguerre polynomial L_n (x). LaguerreL[n, a, x] gives the generalized Laguerre polynomial L_n^a(x).
Plus
(Built-in Mathematica Symbol) x + y + z represents a sum of terms.
BooleanCountingFunction[k_max, n] represents a Boolean function of n variables that gives True if at most k_max variables are True.BooleanCountingFunction[{k}, n] represents ...
CExpression[arg] is a symbolic representation of code that will format using CForm[arg].