x++ increases the value of x by 1, returning the old value of x.
InputNotebook[] gives the current notebook into which keyboard input in the front end will be directed.
IntegerPartitions[n] gives a list of all possible ways to partition the integer n into smaller integers. IntegerPartitions[n, k] gives partitions into at most k integers. ...
LeastSquares[m, b] finds an x that solves the linear least-squares problem for the matrix equation m.x == b.
LightingAngle is an option for ReliefPlot and related functions that specifies the angle from which simulated illumination is taken to come.
LinebreakAdjustments is an option for selections that sets parameters used for calculating where automatic line breaks should be inserted.
LinkLaunch["prog"] starts the external program prog and opens a MathLink connection to it.
Listable is an attribute that can be assigned to a symbol f to indicate that the function f should automatically be threaded over lists that appear as its arguments.
MaxStepFraction is an option to functions like NDSolve that specifies the maximum fraction of the total range to cover in a single step.
NicholsPlot[g] gives the Nichols plot of a rational function g in one complex variable.NicholsPlot[sys] gives the Nichols plot of a TransferFunctionModel or StateSpaceModel ...