TrigToExp (Built-in Mathematica Symbol)

TrigToExp[expr] converts trigonometric functions in expr to exponentials.

Analytic Number Theory (Mathematica Guide)

Building on its broad strengths in mathematics in general, and in special functions in particular, Mathematica provides a unique level of support for analytic number theory, ...

MathieuCharacteristicA (Built-in Mathematica Symbol)

MathieuCharacteristicA[r, q] gives the characteristic value a_r for even Mathieu functions with characteristic exponent r and parameter q.

MathieuCharacteristicExponent (Built-in Mathematica Symbol)

MathieuCharacteristicExponent[a, q] gives the characteristic exponent r for Mathieu functions with characteristic value a and parameter q.

DifferentialRoot (Built-in Mathematica Symbol)

DifferentialRoot[lde] represents a function that solves the linear differential equation specified by lde[y, x].

LibraryFunctionUnload (Built-in Mathematica Symbol)

LibraryFunctionUnload[fun] unloads a LibraryFunction so that it cannot be used.

LibraryFunction (Built-in Mathematica Symbol)

LibraryFunction[args] represents a function that has been loaded from a Wolfram Library.

Hypergeometric2F1Regularized (Built-in Mathematica Symbol)

Hypergeometric2F1Regularized[a, b, c, z] is the regularized hypergeometric function \[Null]_2 F_1 (a, b; c; z)/\[CapitalGamma](c).

MathieuCharacteristicB (Built-in Mathematica Symbol)

MathieuCharacteristicB[r, q] gives the characteristic value b_r for odd Mathieu functions with characteristic exponent r and parameter q.

Expressions with Heads That Are Not ... (Mathematica Tutorial)

In most cases, you want the head f of a Mathematica expression like f[x] to be a single symbol. There are, however, some important applications of heads that are not symbols. ...