This loads packages containing some test problems and utility functions. One of the first and simplest methods for solving initial value problems was proposed by Euler: ...
FaceForm[g] is a graphics directive which specifies that faces of polygons and other filled graphics objects are to be drawn using the graphics directive or list of ...
EllipticF[\[Phi], m] gives the elliptic integral of the first kind F(\[Phi] \[VerticalSeparator] m).
SawtoothWave[x] gives a sawtooth wave that varies from 0 to 1 with unit period.SawtoothWave[{min, max}, x] gives a sawtooth wave that varies from min to max with unit period.
RandomChoice[{e_1, e_2, ...}] gives a pseudorandom choice of one of the e_i. RandomChoice[list, n] gives a list of n pseudorandom choices. RandomChoice[list, {n_1, n_2, ...}] ...
PaletteNotebook[{cell_1, cell_2, ...}] represents a palette notebook that can be manipulated by the Mathematica front end.
$NewMessage is a global variable which, if set, is applied to the symbol name and tag of messages that are requested but have not yet been defined.
Hold
(Built-in Mathematica Symbol) Hold[expr] maintains expr in an unevaluated form.
AlgebraicNumberNorm[a] gives the norm of the algebraic number a.
BitXor
(Built-in Mathematica Symbol) BitXor[n_1, n_2, ...] gives the bitwise XOR of the integers n_i.