Sine-cosine wavelets operational matrix of integration and its applications in the calculus of variations
Mehdi Razzaghi, S. A. Yousefi · International Journal of Systems Science · 2002
An operational matrix of integration P based on sine and cosine wavelets is presented. A general procedure for forming this matrix is given. The matrix P is then used to reduce a variational problem to the solution of algebraic equations. An illustrative example is included to demonstrate the validity and applicability of the technique.