A high-speed method for eigenvalue problems IV Sturm-Liouville-type differential equations. Nature of problem: For the eigenvalue problem of the Sturm-Liouville equation in the various fields of engineering and physics including nuclear physics an efficient and fast procedure is desired. Solution method: Using the spline function in Milne’s method for eigenvalue problems of Sturm-Liouville-type equations, we support a program package MEV4. (Source: