SLASH

\   Backslash or left division.

A\B is the matrix division of A into B, which is roughly the

same as INV(A)*B , except it is computed in a different way.

If A is an N-by-N matrix and B is a column vector with N

components, or a matrix with several such columns, then

X = A\B is the solution to the equation A*X = B computed by

Gaussian elimination. A warning message is printed if A is

badly scaled or nearly singular.  A\EYE(SIZE(A)) produces the

inverse of A.

If A is an M-by-N matrix with M < or > N and B is a column

vector with M components, or a matrix with several such columns,

then X = A\B is the solution in the least squares sense to the

under- or overdetermined system of equations A*X = B. The

effective rank, K, of A is determined from the QR decomposition

with pivoting. A solution X is computed which has at most K

nonzero components per column. If K < N this will usually not

be the same solution as PINV(A)*B.  A\EYE(SIZE(A)) produces a

generalized inverse of A.

/   Slash or right division.

B/A is the matrix division of A into B, which is roughly the

same as B*INVMRZUU2(A) , except it is computed in a different way.

More precisely, B/A = (A'\B')'. See \.

./  Array division.

B./A denotes element-by-element division.  A and B

must have the same dimensions unless one is a scalar.

A scalar can be divided with anything.