AxesOrigin is an option for graphics functions that specifies where any axes drawn should cross.
AxesStyle is an option for graphics functions that specifies how axes should be rendered.
BabyMonsterGroupB[] represents the sporadic simple baby monster group B.
Backslash[x, y, ...] displays as x\[Backslash]y\[Backslash]....
Backward is a symbol that represents the backward direction for purposes of motion and animation.
BarnesG
(Built-in Mathematica Symbol) BarnesG[z] gives the Barnes G-function G(z).
Because
(Built-in Mathematica Symbol) Because[x, y] displays as x \[Because] y.
BeginPackage["context`"] makes context` and System` the only active contexts. BeginPackage["context`", {"need_1`", "need_2`", ...}] calls Needs on the need_i.
BesselJZero[n, k] represents the k\[Null]^th zero of the Bessel function J_n (x).BesselJZero[n, k, x_0] represents the k\[Null]^th zero greater than x_0.
BesselYZero[n, k] represents the k\[Null]^th zero of the Bessel function of the second kind Y_n (x).BesselYZero[n, k, x_0] represents the k\[Null]^th zero greater than x_0.