A potpourri of programs; applications of various
algorithms to give numerical solutions to various problems. Menu
items include: Plot a given function, solve for a zero of a given
function, find min/max point of a given function, compute a finite
or infinite summation, evaluate a function for given argument(s),
plot tabulated data points from a file, compute Weighted-Least-Square
Fit of a given function, compute Weighted-Least-Square Fit for
tabulated data points, take the product of two matrices, find
the transpose and inverse of a matrix, rotate the vector A, solve
system of N first order O.D.E.: Yi' = F(X,Yj) (i,j = 0,1,..,N-1),
solve N-th order O.D.E., e.g: Y''' = F(X,Y0,Y1,Y2) (the method
used for all I.C. problems is the Bulirsch_Stoer integration procedure
with 4-th order Runge-Kutta step taken at points of non-convergence),
a programable calculator, numerical integration of a function
using iterative methods (Romberg's method, Adaptive Gauss-Legendre
Quadrature), numerical integration of a function using various
Gauss Quadratures (Legendre Quadrature, Chebyshev Quadrature,
Laguerre Quadrature, Hermite Quadrature), and analytical integration
of one of the functions stored in the intergration database.

Requires the use of some listing program and some
plotting program. zlist.exe and plot.exe are provided.

The solutions of differential equations are written
to a data file which can then be plotted.