a ^A _B

= acceleration (first-order tensor) of point B wrt frame A

D ^A(*)

= rotational time derivative of a vector or tensor * wrt frame A

d(*)/d t

= ordinary time derivative

E

= identity tensor

I ^B _C

= inertia tensor (second-order tensor) of body B referred to point C

l ^BA _C

= angular momentum (first-order tensor) of body B wrt frame A referred to point C

m ^B

= mass (zeroth-order tensor or scalar) of body B

P

= projection tensor (second-order tensor)

p ^A _B

= linear momentum (first-order tensor) of particle B wrt frame A

R _BA

= rotation tensor (second-order tensor) of frame B wrt frame A

s _BA

= displacement vector (first-order tensor) of point B with respect to (wrt) point A

s _AB[*] ^A

= transposed vector or matrix *

T ^BA

= kinetic energy (scalar) of body B wrt frame A

v ^A _B

= velocity vector (first-order tensor) of point B wrt frame A

? ^BA

= angular velocity vector (first-order tensor) of frame B wrt frame A

[*] ^A

= vector or tensor * expressed in the A coordinate system