Patent ID: 6564163
Filing Date: 2003-05-13
Classification: G01K

Abstract:
A calculation device, wherein a solution Z is calculated usinga variable X and a variable Y, comprising: a memory for storing a plurality of solutions Z being calculated using a plurality of values of said variable X and a plurality of values of said variable Y; and a calculation unit for inputting a predetermined value of said variable X and a predetermined value of said variable Y, reading, out from said memory a plurality of values of the stored variable X corresponding to the predetermined value of the inputted variable X, reading out from the memory a plurality of values of the stored variable Y corresponding to the predetermined value of the inputted variable Y, reading out from the memory a plurality of said stored solutions Z corresponding to the plurality of values of the read out variable X and the plurality of values of the read out variable Y, and calculating the solutions Z corresponding to the predetermined value of the inputted variable Y and the predetermined value of the inputted variable X using interpolation; wherein the plurality of values of the stored variable X read our of the memory includes at least a first value of the variable X smaller than the predetermined value of the inputted variable X and a second value of the variable X larger than the predetermined value of the inputted variable X, and the plurality of values of the stored variable Y read out of the memory includes at least a first value of the variable Y smaller than the predetermined value of the inputted variable Y and a second value of the variable Y larger than the predetermined value of the inputted variable Y.