Try making these two assignments:
assume_pos : true
assume_pos_pred : lambda([x], true)
Let us know if that doesn't work.
--Barton
________________________________
From: maxima-bounces at math.utexas.edu [maxima-bounces at math.utexas.edu] on behalf of Ben Blomberg [bblomberg at mail.bradley.edu]
Sent: Wednesday, May 29, 2013 17:17
To: maxima
Subject: Integrate Issues
Hello All,
I am trying to use "Integrate" but Maxima when I run my code the terminal asks me dozens of times if values are zero or non zero. Here is from the Xmaxima console "Is 1554208430 phi + 1459173 %pi zero or non zero?".
phi is a variable I plot over with values from 0 to 0.0015. x is my variable of integration. everything else (eigenfunctionsort, hbar1, c1, dp etc...) has a numerical value.
for n:1 thru 11 do for j:1 thru 21 do v[n,j]:1/sqrt(dp)*(sum(eigenfunctionsort[n,j][m+11]*exp(%i*2*%pi*m*x/dp),m,-10,10));
define(P(a,b),integrate( v[6,1]*exp((-%i)*(10)*phi/(hbar1*c1)*x),x,a,b));
plot2d((((1/sqrt(dp))*P(-dp/2,dp/2))^2),[phi,0,0.0015]);
I am eventually asked if phi is zero or non zero and I am not sure what to put as it will have a range of values starting at zero. How can I get maxima to integrate with this variable phi without getting tripped up and asking if dozens of values containing phi are is zero or non zero?
Best,
Ben