xFunctions.sea.hqx

                          xFunctions v2.3
                             David Eck
                      Department of Mathematics
                         Brandeis University
                          Waltham, MA 02254
                            eck@hws.bitnet

                         
xFunctions is a program for exploring functions and their
properties related to calculus topics. It is well-suited for use
in classroom demonstration or in a computer lab in calculus and
precalculus courses.  The user can define a function (even in a
piecewise fashion) and then view it as a formula, a table, a
graph or just evaluate it at specified points.  In the graph
view, you can draw a box in the graph and view the graph just
inside the box.

A separate part of the program allows you to enter a function
simultaneously view the function together with its first two
derivatives.  Then as you move the cursor along one of these
graphs, the program draws the tangent line at that point on that
curve, and indicated the corresponding point on its derivative. 
There are also features to view Riemann sums, to animate families
of functions, to graph parametric curves, to graph integral
curves (several different methods ranging from Euler's method to
Runge-Kutta), and to plot surfaces. 

The program is easy to use and comes with on-line help.  (There
is even a help selection on why you should be cautious in
believing everything that a graphing program suggests.) 

Runs under either system 6 or system 7 and is 32-bit clean.

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Location in Mathematics Archives:
  Anonymous FTP:  /mac/calculus
                  /mac/graphingAids
                  /mac/precalculus

  Gopher:
    (First select "Software" then "Macintosh software arranged
     by subjects")
                  Calculus / xFunctions
                  Graphing Aids / xFunctions
                  Precalculus / xFunctions

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