| 摘要 |
PURPOSE:To improve an arithmetic accuracy by specially connecting plural adders of 3 input signals and plural coefficient multipliers to multiply the reciprocal number of the involution of 2. CONSTITUTION:3 input edges (a), (b) and (c) and an output edge (s) are provided at adders 2, 3 and 4 and coefficient multipliers 5, 6, 7 and 8 can multiply the reciprocal number of the involution of 2. The coefficient multipliers 5, 6, 7 and 8 can be connected to 1 or 2 input edges of the adders 2, 3 and 4, plural pieces are connected, and for example, a coefficient multiplier 5 is inputted to an adder 2, coefficient multipliers 6 and 7 are inputted to an adder 3 and a coefficient multiplier 8 is inputted to an adder 4 respectively. |
