Cot (Built-in Mathematica Symbol)

Cot[z] gives the cotangent of z.

Csch (Built-in Mathematica Symbol)

Csch[z] gives the hyperbolic cosecant of z.

EllipticTheta (Built-in Mathematica Symbol)

EllipticTheta[a, u, q] gives the theta function \[CurlyTheta]_a (u, q) (a = 1, ..., 4).

FourierDCT (Built-in Mathematica Symbol)

FourierDCT[list] finds the Fourier discrete cosine transform of a list of real numbers.FourierDCT[list, m] finds the Fourier discrete cosine transform of type m.

InverseFourier (Built-in Mathematica Symbol)

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

LessEqual (Built-in Mathematica Symbol)

x <= y or x <= y yields True if x is determined to be less than or equal to y. x_1 <= x_2 <= x_3 yields True if the x TraditionalForm\`i form a nondecreasing sequence.

Less (Built-in Mathematica Symbol)

x < y yields True if x is determined to be less than y. x_1 < x_2 < x_3 yields True if the x_i form a strictly increasing sequence.

RankedMax (Built-in Mathematica Symbol)

RankedMax[list, n] gives the n\[Null]^th largest element in list.

RankedMin (Built-in Mathematica Symbol)

RankedMin[list, n] gives the n\[Null]^th smallest element in list.

SumConvergence (Built-in Mathematica Symbol)

SumConvergence[f, n] gives conditions for the sum \[Sum]_n^\[Infinity] f to be convergent.SumConvergence[f, {n_1, n_2, ...}] gives conditions for the multiple sum \[Sum]_n ...