trouble resolving a integral for calculating a Fourierseries

This is a piecewise function, Maxima has no built in way to integrate piecewise functions.  I have a package on this 
site called pw.mac that can integrate piecewise functions continuous or not.

The site is http://mysite.verizon.net/res11w2yb/id2.html

There is a lot of examples there and a help file.  You cannot integrate "if then else's" but you can rewrite you 
functions using the piecewise() function that is contained in pw.mac.  Then you can integrate it with pwint().

Rich
    


From: Richard Hennessy 
Sent: Sunday, April 11, 2010 3:36 PM
To: Pedro Ferreira ; maxima at math.utexas.edu 
Subject: Re: [Maxima] trouble resolving a integral for calculating a Fourierseries


Try pw.mac.  http://mysite.verizon.net/res11w2yb/id2.html

Rich



From: Pedro Ferreira 
Sent: Saturday, April 10, 2010 12:03 PM
To: maxima at math.utexas.edu 
Subject: trouble resolving a integral for calculating a Fourier series


Hello, I'm trying to calculate a Fourier series but I'm having trouble calculating the integrals.
Maxima isn't calculating, i think i have to somehow simplify the vi(t) function but can't see how.

The problem starts with: a0:2/T*integrate(vi(t),t,-T/2,T/2); - (its located towards the end)

but probably has to do with how i define vi(t), or more likely va(t).

I'm stuck there right now, so would appreciate any help :)
thanks

(The file is attached to the email)



--------------------------------------------------------------------------------


_______________________________________________
Maxima mailing list
Maxima at math.utexas.edu
http://www.math.utexas.edu/mailman/listinfo/maxima



--------------------------------------------------------------------------------


_______________________________________________
Maxima mailing list
Maxima at math.utexas.edu
http://www.math.utexas.edu/mailman/listinfo/maxima