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## complex integral or multiple integral

**From**: |
Shih Lin |

**Subject**: |
complex integral or multiple integral |

**Date**: |
Tue, 29 Feb 2000 21:33:26 AKST |

Dear Dirk Laurie or any octave expert:

` In your help-octave mailing list 5 May, 1998, you talk about compexx
``integral in octave,
`
I am interesting inverse fourier transform, with v(f)*exp(i*2*pi*f)
but before go that far, I tried at octave 2.0.13
using int( I assume it is integral, but I probably is wrong) and Cin
you write in that mainling list achieve.
both are not working
int(sin(x),x)
or
Cin(sin(x),x)
I get error:
x is undfined
expression near line 1 , colume 9
argument list
index expression
so do you know what is integrate in octave? Is that quad
I also tried quad(sin(x), 0, 3*pi) intend to integral from 0 to 3*pi
get error too
similar errors prompt
in the mailing list Wed Nov 5, 1997 help-octave
John W. Eaton to Joe Reinhardt
there is a website store information about multiple integration
at
http://www.tsc.uvigo.es/GTS/Octave
I tried but not connect I tried thice.
looking for help
address@hidden
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**complex integral or multiple integral**,
*Shih Lin* **<=**