D (Built-in Mathematica Symbol)

D[f, x] gives the partial derivative \[PartialD]f/\[PartialD]x. D[f, {x, n}] gives the multiple derivative \[PartialD]^n f/\[PartialD]x^n. D[f, x, y, ...] differentiates f ...

EulerPhi (Built-in Mathematica Symbol)

EulerPhi[n] gives the Euler totient function \[Phi](n).

GatherBy (Built-in Mathematica Symbol)

GatherBy[list, f] gathers into sublists each set of elements in list that gives the same value when f is applied.GatherBy[list, {f_1, f_2, ...}] gathers list into nested ...

InverseFourier (Built-in Mathematica Symbol)

InverseFourier[list] finds the discrete inverse Fourier transform of a list of complex numbers.

Limit (Built-in Mathematica Symbol)

Limit[expr, x -> x_0] finds the limiting value of expr when x approaches x_0.

LinearSolve (Built-in Mathematica Symbol)

LinearSolve[m, b] finds an x which solves the matrix equation m.x == b. LinearSolve[m] generates a LinearSolveFunction[...] which can be applied repeatedly to different b.

LocatorPane (Built-in Mathematica Symbol)

LocatorPane[{x, y}, back] represents a pane with a locator at position {x, y} and background back.LocatorPane[Dynamic[pt], back] takes the locator position to be the ...

LQOutputRegulatorGains (Built-in Mathematica Symbol)

LQOutputRegulatorGains[ss, {q, r}] gives the optimal state feedback gain matrix for the StateSpaceModel object ss and the quadratic cost function with output and control ...

PowerDistribution (Built-in Mathematica Symbol)

PowerDistribution[k, a] represents a power distribution with domain parameter k and shape parameter a.

Raster (Built-in Mathematica Symbol)

Raster[{{a_11, a_12, ...}, ...}] is a two-dimensional graphics primitive which represents a rectangular array of gray cells. Raster[{{{r_11, g_11, b_11}, ...}, ...}] ...