[Scilab-users] Cauchy Integral query

[Lester Anderson]

Hello,

I am trying to understand how to work the Cauchy integral inputs and
replicate the results of a published example:

.e.g. Compute the integral of e^(z^2) / (z-2) assumes C is closed
(anticlockwise) and z=2 is inside C (a simple circle). The solution should
be 2*pi*i*f(2) = 2*pi*i*e^4

In Scilab, the solution is defined from the Cauchy Integral (intl):
y = intl(a, b, z0, r, f)
a and b are real and z complex

function y=f(z)
  y = exp((z^2)) // solution uses f(z) =  e^(z^2)
endfunction

fz=intl(0, 2*%pi, 2+0*%i, 1, f) // gives round-off error
// z position +2(real z), 0(imaginary z)

Probably not setting up the inputs correctly; any guidance would be
helpful. All a learning exercise.

Thanks

Lester
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