Program integrates any complex function of z
along any contour given as a function of t




Program performs complex contour integration 
using the TI-85's internal integrator.  This
process is just complicated enough that you
can't do it all on the solver.
	Input a function in terms of the sym-
bols z, x ,y, and i, where x is interpreted 
as Re(z), y as Im(z), and i as a square root
of -1.
	Input a contour, in the form of a
complex parametric function of t.  Use symbols
t and 'i' as above.
	Input upper and lower limits for t.
	The integral is displayed, to the
tolerance for real and imaginary part each
as set by the TOLER menu.

Example:  To integrate 1/z counter-clockwise
around the unit circle, for Fn(z), input
1/z.  For z(t), input e^(i*t).  For limits
A and B, input 0 and 2\pi\ respectively.  The
calculator returns (0,6.28318 ... ), or 2\pi\i
as expected.

Example: To integrate y-x-3ix^2 along the line
segment from z=0 to z=1+i, for Fn(z), input
y-x-3i*x^2.  For z(t), input (1+i)t.  For 
limits A and B, input 0 and 1, respectively.
The calculator returns (1,-1), or 1-i as
expected.

Note that TOLER may need adjusting to suit 
your requirements.

This program is completely self-contained. It
stores equations in the variables z,x,y,Fn, 
and i. 

Written by Prof. Mark Janeba
Dept. of Math
Willamette University
Salem, OR 97301
e-mail: mjaneba@willamette.edu