% -*- texinfo -*- % @deftypefn{Function File} {@var{x} =} smwsolve (@var{a}, @var{u}, @var{v}, @var{b}) % @deftypefnx{Function File} {} smwsolve (@var{solver}, @var{u}, @var{v}, @var{b}) % Solves the square system @code{(A + U*V')*X == B}, where @var{u} and @var{v} are % matrices with several columns, using the Sherman-Morrison-Woodbury formula, % so that a system with @var{a} as left-hand side is actually solved. This is % especially advantageous if @var{a} is diagonal, sparse, triangular or % positive definite. % @var{a} can be sparse or full, the other matrices are expected to be full. % Instead of a matrix @var{a}, a user may alternatively provide a function % @var{solver} that performs the left division operation. % @end deftypefn

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