Nehzat Ebrahimi - Department of Mathematics,Islamic Azad University,Central Tehran Branch,Iran
Jalil Rashidinia - Department of Mathematics,Islamic Azad University,Central Tehran Branch,Iran

A collocation procedure is developed for the linear and nonlinear Volterra - Fredholm integro-differential equations, using the globally defined B-spline and auxiliary basis functions. The solution is collocated by cubic B-spline and the integrand is approximated by the Newton-Cotes formula. The error analysis of proposed numerical method is studied theoretically.

Volterra-Fredholm integro-differential equations; Cubic B-spline Newton-Cotes formula, Convergence analysis