It is also shown how these techniques lead to two numerically stable methods for updating the Cholesky factorization of a matrix following the addition or subtraction, respectively, of a matrix of ...

up to 16 buttons by 4x4 matrix or via button box firmware uploaded to Arduino Nano/Uno analog XY H-pattern shifter, configurable to 6/8 gears + reverse fully supported 16bit FFB effects (custom force ...