Functions and operators defined inside the program LORENTZ.RED
To be used as a quick "reminder", not as a substitute of the 
comments and definitions in the main file.

ARRAYS
CO  Iintroduces te coordinates name)
LAME (introduces the Lame coefficients)
RRC  (Ricci rotation coefficients)

PROCEDURES  AND OPERATORS
acomm (A,B)
angle (rotation)
axis  (rotation)
bar (A)  "Clifford conjugate"
bivect (6 arguments)
bc , bp,  uc, up   (arguments of the axis, velocity)  "boost and unitary  bivector generators"
bleft (Lorentz transformation)  "gives the boost left factor"
bpol , bcar
bright(Lorentz transformation)  "gives the boost right factor"
cliffor(a)  "full element with symbol a"
clifforp(a) "even (or plus) element"
clifform(a) "odd (or minus" element"
col* (Lorentz transformation)  "gives the columns of the 4x4 matrix"
col**(Lorentz transformation)  "gives the columns of the 6x6 matrix"
comm (A,B)   "the commutator"
comm2 (A,B)  "half the commutator"
covder(x,y)  "covariant derivative of the field x with respect
              the vector field y"
degrees (rotation)
efpart  , mfpart , vpart,  kpart   "select a specific part of a multivector"
gradsplit
grade(x,k)  "selects the k-order part"
laplace (A)
leftcar, leftpol,  rightcar, rightpol
lorentzmat(Lorentz transformation)  "gives the 4x4 matrix"
lorentzmat2(Lorentz transformation)  "gives the 6x6 matrix 2-compound"
mainvol (A)   "main involution"
mkidn  "Auxiliary operator"
nabla (A)
pseudo (a)
rapidity (boost)   "gives its rapidity"
rc, rp, nc, np    (arguments of the axis, angle)  "rotation  and unitary  bivector generators"
rev (A)   "reversion"
rotpart (Lorentz transformation)   "the rotation factor"
rzxz, rzyz, rzyx (Euler angle conventions)
signature 
thetab , thetar, phib, phir  (polar coordinates for boost and rotation)
trivect (a)   
u    "name for the basis vectors, do not interfere with the number e"
usergrad
vect (a)
veloc(boost)  "gives the velocity in natural units"
velok (boost)   "gives the velocity in km/s "
vvec (gives the velocity vector, in natural units)

VARIABLES
dg   for degrees
epsilon   "an enough small quantity"
f1 .... f4   generic space-time dependent multivector fields, with function 
             components { a*,ef*,mf*,t*}
kps   for km/s
matf1, .... matf4  "vector-column form for the generic space-time multivector 
                     components"