The College of Science - Mathematics Dept. discussed a master's thesis entitled (Numerical solutions to the equation of the individual disrupt differential difference using the cubic B-Spline method) by graduate student Ashwaq Abdul Latif Abboud on the Zoom platform. The thesis proposed the solution of turbulent and single differential difference equations with a boundary layer on the left and right sides of the interval by the cubic B-spline method. The cubic B-spline method was also used with a new second-order derivative called the new cubic B-spline method. Also the error was analyzed for this method. To test the accuracy of the proposed method, the results were compared with the analytical solution of equations and other methods