Every new version of Mathematica contains many new features. But careful design from the outset has allowed nearly total compatibility to be maintained between all versions. ...
ExpIntegralE[n, z] gives the exponential integral function E_n (z).
LerchPhi[z, s, a] gives the Lerch transcendent \[CapitalPhi] (z, s, a).
NevilleThetaD[z, m] gives the Neville theta function \[CurlyTheta]_d (z \[VerticalSeparator] m).
Exp
(Built-in Mathematica Symbol) Exp[z] gives the exponential of z.
FindInstance[expr, vars] finds an instance of vars that makes the statement expr be True. FindInstance[expr, vars, dom] finds an instance over the domain dom. Common choices ...
Root
(Built-in Mathematica Symbol) Root[f, k] represents the exact k\[Null]^th root of the polynomial equation f[x] == 0. Root[{f, x_0}] represents the exact root of the general equation f[x] == 0 near x = ...
AiryAi
(Built-in Mathematica Symbol) AiryAi[z] gives the Airy function Ai(z).
AiryAiPrime[z] gives the derivative of the Airy function Ai^\[Prime] (z).
AiryBi
(Built-in Mathematica Symbol) AiryBi[z] gives the Airy function Bi(z).