Which (Built-in Mathematica Symbol)

Which[test_1, value_1, test_2, value_2, ...] evaluates each of the test_i in turn, returning the value of the value_i corresponding to the first one that yields True.

$Aborted (Built-in Mathematica Symbol)

$Aborted is a special symbol that is returned as the result from a calculation that has been aborted.

$Notebooks (Built-in Mathematica Symbol)

$Notebooks is True if Mathematica is being used with a notebook-based front end.

Documentation Constructs (Mathematica Tutorial)

When you write programs in Mathematica, there are various ways to document your code. As always, by far the best thing is to write clear code, and to name the objects you ...

ConnectedQ (Combinatorica Package Symbol)

ConnectedQ[g] yields True if undirected graph g is connected. If g is directed, the function returns True if the underlying undirected graph is connected. ConnectedQ[g, ...

Evaluation > Interrupt Evaluation... (Mathematica Menu Item)

Interrupt Evaluation interrupts the current operation being performed by the kernel.

Abort (Built-in Mathematica Symbol)

Abort[] generates an interrupt to abort a computation.

ControllerLinking (Built-in Mathematica Symbol)

ControllerLinking is an option for Manipulate, Graphics3D, Plot3D, and related functions that specifies whether to allow interactive control by external controllers.

ImageSubtract (Built-in Mathematica Symbol)

ImageSubtract[image, x] subtracts a constant amount x from each channel value in image.ImageSubtract[image_1, image_2] gives an image in which each pixel is obtained by ...

MemoryConstrained (Built-in Mathematica Symbol)

MemoryConstrained[expr, b] evaluates expr, stopping if more than b bytes of memory are requested. MemoryConstrained[expr, b, failexpr] returns failexpr if the memory ...