| 摘要 |
<p>PURPOSE:To perform arithmetic at a high speed by writing previously the function value of each arithmetic result to the variable of a function to a RAM. CONSTITUTION:A CPU1 calculates the function value to each input value of variables x1-xn against a function y=f(x1-xn) and stores the function value in an auxiliary memory 2. While a RAM4 has plural addresses to each input value of variables x1-xn. The corresponding function value of the function y=f(x1-xn) is written to each address of the RAM4 from the memory 2 via an address selector 3. When the function value is transferred to the RAM4, the selector 3 is set at the input side of variables x1-xn. Hereafter the variables x1-xn are supplied to the RAM4 when necessary in the form of address signals. The function value is extracted out of the address corresponding to input of those address signals and delivered to an output device 5 for display.</p> |
