J4 ›› 2012, Vol. 47 ›› Issue (4): 84-88.

• Articles • Previous Articles     Next Articles

The approximation of definite integration by using Haar wavelet and operator matrix

GENG Wan-hai, CHEN Yi-ming, LIU Yu-feng, WANG Xiao-juan   

  1. College of Science, Yanshan University, Qinhuangdao 066004, Heibei, China
  • Received:2011-05-05 Online:2012-04-20 Published:2012-06-28

Abstract:

The corresponding definite integral problem is transformed into calculate product of the constant matrix by combining Haar wavelet with operator matrix and the integrand is discrete felicitously. It is easy to achieve the product of constant matrix with MATLAB. The numerical examples show that the method is effective.

Key words: Haar wavelet; operator matrix; integrand; approximation

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