Computer for numeric calculation of a plurality of functionally interrelated data units

In a computer for numeric calculation of a plurality of functionally interrelated data units, each data unit corresponding to a point of a grid, the grid being arranged in rows and columns and covering a domain of solutions, using mathematical operations involving data units associated with grid points adjacent a preselected grid point and including a cyclic memory having at least as many storage cells as the grid has grid points, each storage cell storing a corresponding grid point data unit;

• means for storing information in at least one of the storage cells;
• shifting means for cyclically shifting cell-by-cell the information contained in the storage cells;
• a plurality of computing means, each computing means capable of being connected to more than one storage cell;
• and means for retrieving information from the cyclic memory when a calculation has been carried out, the improvement wherein:
• each storage cell includes a first memory location for storing the corresponding grid point data unit and a second memory location for storing a code associated with the grid point data unit stored in the first memory location, the code containing information for controlling and processing the grid point data unit stored in the first memory location;
• and wherein each computing means is connected to a respective preselected storage cell and the storage cells storing smultaneously, at a predetermined time of each complete shift cycle, the grid point data units of grid points adjacent, in row and column direction of the grid, the grid point corresponding to said respective preselected storage cell at the predetermined time, each computing means being controlled by the code stored in the second memory location of said respective preselected storage cell for calculating a new grid point data unit for the grid point corresponding to said respective preselected storage cell using the grid point data units of the adjacent grid points.