MS_ROTR - Script to rotate a set of elastic constants by a rotation matrix

Rotate an elasticity matrices using a rotation matrix

[ CR ] = MS_rotR( C, R )

Usage:
    For a three-by-three rotation matrix, R, rotate the elasticity matrix,
    C to give a rotated matrix CR.

Notes:
   The rotation is performed without transforming the elasticity
   matrix to the full tensor form following the method described in
   Bowers. This eleminates eight nested loops and replaces them with pure
   matrix-matrix operations, which is (~30 times) faster in Matlab.
   Unlike the other MSAT rotation functions, C and R cannot be lists but
   must be 6x6 and 3x3 matricies, respectivly. Furthermore, the
   corectness of the input arguments are not checked. Users are encoraged
   to make use of MS_rot3 or MS_rotEuler for most rotation operations -
   these make use of this function internally.

References:
   Bowers 'Applied Mechanics of Solids', Chapter 3

See also: MS_ROT3 MS_ROTEULER