StringFreeQ (Built-in Mathematica Symbol)

StringFreeQ["string", patt] yields True if no substring in " string" matches the string expression patt, and yields False otherwise. StringFreeQ["string", {patt_1, patt_2, ...

StringMatchQ (Built-in Mathematica Symbol)

StringMatchQ["string", patt] tests whether " string" matches the string pattern patt. StringMatchQ["string", RegularExpression["regex"]] tests whether " string" matches the ...

StringReplaceList (Built-in Mathematica Symbol)

StringReplaceList["string", s -> sp] or StringReplaceList["string", {s_1 -> sp_1, s_2 -> sp_2, ...}] gives a list of the strings obtained by replacing each individual ...

TriangleWave (Built-in Mathematica Symbol)

TriangleWave[x] gives a triangle wave that varies between -1 and +1 with the unit period.TriangleWave[{min, max}, x] gives a triangle wave that varies between min and max ...

TrigExpand (Built-in Mathematica Symbol)

TrigExpand[expr] expands out trigonometric functions in expr.

UnitBox (Built-in Mathematica Symbol)

UnitBox[x] represents the unit box function, equal to 1 for |x| <= 1/2 and 0 otherwise.UnitBox[x_1, x_2, ...] represents the multidimensional unit box function, equal to 1 if ...

UnitTriangle (Built-in Mathematica Symbol)

UnitTriangle[x] represents the unit triangle function on the interval |x| <= 1 .UnitTriangle[x_1, x_2, ...] represents the multidimensional unit triangle function on the ...

WeierstrassZeta (Built-in Mathematica Symbol)

WeierstrassZeta[u, {g_2, g_3}] gives the Weierstrass zeta function \[Zeta](u; g_2, g_3).

ZernikeR (Built-in Mathematica Symbol)

ZernikeR[n, m, r] gives the radial Zernike polynomial R_n^m(r).

AiryAi (Built-in Mathematica Symbol)

AiryAi[z] gives the Airy function Ai(z).