Masking
(Built-in Mathematica Symbol) Masking is an option for various image analysis and processing functions that specifies on which regions they should operate.
PartitionsQ[n] gives the number q (n) of partitions of the integer n into distinct parts.
x - y is equivalent to x + (-1*y).
FractionalPart[x] gives the fractional part of x.
Operate
(Built-in Mathematica Symbol) Operate[p, f[x, y]] gives p[f][x, y]. Operate[p, expr, n] applies p at level n in the head of expr.
Divisible[n, m] yields True if n is divisible by m, and yields False if it is not.
FiniteGroupCount[n] gives the number of finite groups of order n.
If you want to do simple operations on Mathematica notebooks, then you will usually find it convenient just to use the interactive capabilities of the standard Mathematica ...
EllipticThetaPrime[a, u, q] gives the derivative with respect to u of the theta function \[CurlyTheta]_a (u, q) (a = 1, ..., 4).
Palettes are like extensions of your keyboard. They can be used to perform many actions in Mathematica, including entering typesetting characters, styling notebooks, and ...