ParabolicCylinderD[\[Nu], z] gives the parabolic cylinder function D_\[Nu] (z).
SpheroidalQS[n, m, \[Gamma], z] gives the angular spheroidal function QS n, m (\[Gamma], z) of the second kind.
StruveH
(Built-in Mathematica Symbol) StruveH[n, z] gives the Struve function H n (z).
StruveL
(Built-in Mathematica Symbol) StruveL[n, z] gives the modified Struve function L n (z).
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 ...
Piecewise[{{val_1, cond_1}, {val_2, cond_2}, ...}] represents a piecewise function with values val_i in the regions defined by the conditions cond_i. Piecewise[{{val_1, ...
A delay differential equation is a differential equation where the time derivatives at the current time depend on the solution and possibly its derivatives at previous times: ...
Exp
(Built-in Mathematica Symbol) Exp[z] gives the exponential of z.
InverseErf[s] gives the inverse error function obtained as the solution for z in s = erf(z).
SpheroidalEigenvalue[n, m, \[Gamma]] gives the spheroidal eigenvalue with degree n and order m.