Recently written a graphics processing software, you need to use a numeric approach to Java implementation, but have not found a better reference. Finally, a pretty good book, share with you: "Java Number Cruncher - The Java Program's Guide to Numeric Computing, [Beauty] Ronald Mak. The author is a cow, which is an expert in Nasa Ames Research Center, and is one of the developers of Mars Detecting Robot Software. The Chinese translation is "Java Numerical Method" and the Electronic Industry Press. Related Website: http://authors.phptr.com/mak/http://www.apropos-logic.com/NC/ Main Content: Solid Safety Algorithm, Solving Equation Roots, Interpretation Method, and Approximate Method, Numerical Integral, solving differential equations, matrix operations and other interesting applications. There is a vivid GUI demo program. I mainly need an algorithm for interpolation, approaching and some matrix operations.