$ControlActiveSetting (Built-in Mathematica Symbol)

$ControlActiveSetting is a symbol whose value is True if it is evaluated while a control is active, or in certain other previewing situations.

MLTransferToEndOfLoopbackLink() (Mathematica MathLink C Function)

int MLTransferToEndOfLoopbackLink (MLINK d, MLINK s) transfers the full contents of the loopback link s to the destination link d.

Global System Information (Mathematica Tutorial)

In order to write the most general Mathematica programs you will sometimes need to find out global information about the setup under which your program is being run. Thus, ...

Algebraic Operations on Polynomials (Mathematica Tutorial)

For many kinds of practical calculations, the only operations you will need to perform on polynomials are essentially structural ones. If you do more advanced algebra with ...

DigitCount (Built-in Mathematica Symbol)

DigitCount[n, b, d] gives the number of d digits in the base-b representation of n. DigitCount[n, b] gives a list of the numbers of 1, 2, ..., b - 1, 0 digits in the base-b ...

Building Lists from Functions (Mathematica Tutorial)

Making lists from functions. This makes a list of 5 elements, each of the form p[i]. Here is another way to produce the same list.

Memory Management (Mathematica Tutorial)

Finding memory usage. Particularly for symbolic computations, memory is usually the primary resource which limits the size of computations you can do. If a computation runs ...

Names (Built-in Mathematica Symbol)

Names["string"] gives a list of the names of symbols which match the string. Names[patt] gives a list of names matching the arbitrary string pattern patt.

BlankNullSequence (Built-in Mathematica Symbol)

___(three _characters) or BlankNullSequence[] is a pattern object that can stand for any sequence of zero or more Mathematica expressions. ___h or BlankNullSequence[h] can ...

Tr (Built-in Mathematica Symbol)

Tr[list] finds the trace of the matrix or tensor list. Tr[list, f] finds a generalized trace, combining terms with f instead of Plus. Tr[list, f, n] goes down to level n in ...