Patent Number: 8,577,947

Title: Method of finding solution of equation and recording medium storing program for implementing the same

Abstract: The present invention relates to a solution-finding method, which finds an approximate solution of an equation having difficulty in obtaining an actual solution and a complicated equation in numerical analysis. The method obtains an approximate solution of an equation having a solution in a predetermined interval. Initial values are calculated based on upper and lower limits of the interval. The initial values are applied to a solution-finding equation, including a sign function and the upper and lower limits, and the solution-finding equation is arranged so that a definite integral formula for the sign function is included in the equation. The definite integral formula in the solution-finding equation is calculated using numerical integration, and results of the definite integral formula are applied to the solution-finding equation, thus obtaining an approximate solution. This performance is iterated until the approximate solution satisfies an allowable error.

Inventors: Yun; Beong-in (Chonpuk, KR)

Assignee: Kunsan National University Industry-Academic Cooperation Foundation

International Classification: G06F 7/38 (20060101)

Expiration Date: 1/05/12017