oscillatory is a collection of three files.
          osc.m   intgnd1  intgnd2  

           osc.m is a program which evaluates an oscillatory integral
           with the integrand intgnd1

     dispersion is a collection of five files.
           disper.m   bigu.m  omega1.m   omega2.m   omega3.m

           disper.m is a program which calculates dispersive waves. It 
           uses the functions mfiles bigu.m, omega1.m, 

           The Fourier transform of the initial data is given in bigu.m.
           Three different dispersion relations are given in the function
           mfiles omega1.m, omega2.m, and omega3.m.

     schrodinger is a collection of three files
           unifm.m    shd.m    bigg.m

           unifm.m  is a program which uses simple Riemann sums to 
           calculate the solution of the free Schrodinger equation
           with initial data a uniform probability density on [-1, 1].
           It uses the function mfile bigg.m for the Schrodinger kernel.

           shd.m  is a program to calculate the solution of the free
           Schrodinger equation using fast fourier transform. It uses
           the function file f.m for the initial data.

     square well is a collection of three files
           bdstates.m   pp.m   qq.m
      
           bdstates.m finds the eigenvalues and plots the eigenfunctions
           for the Schrodinger equation with a square well potential.
           It uses the function files pp.m and qq.m to find the eigenvalues.