In many cases, you will find it convenient to communicate with external programs at a high level, and to exchange structured data with them. On almost all computer systems, ...

LibraryUnload[lib] unloads all functions that have been loaded from a Wolfram Library, then it unloads the library.

LibraryFunctionError[name, code] represents an error returned from a LibraryFunction.

Whenever machine-precision numbers appear in a calculation, the whole calculation is typically done in machine precision. Mathematica will then give machine-precision numbers ...

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

Return[expr] returns the value expr from a function. Return[] returns the value Null.

ChebyshevT[n, x] gives the Chebyshev polynomial of the first kind T_n (x).

WaveletBestBasis[dwd] computes a best basis representation in the DiscreteWaveletData object dwd.WaveletBestBasis[dwd, cspec] computes a best basis representation using the ...

UnitStep[x] represents the unit step function, equal to 0 for x < 0 and 1 for x >= 0. UnitStep[x_1, x_2, ...] represents the multidimensional unit step function which is 1 ...

You can think of an expression like f[x] as being formed by applying an operator f to the expression x. You can think of an expression like f[g[x]] as the result of composing ...