[sage-devel] Could someone please review #13836?

2013-01-04 Thread Andrew Fleckenstein
Hello all, Christian Kuper noted that the critical_points() function of PiecewisePolynomial depended on the variable involved. He then noticed that other functions also depended on the variable. I went through the code and fixed all the variable dependence, with the exception of the convolution fu

Re: [sage-devel] bug in integration

2012-04-17 Thread Andrew Fleckenstein
I reproduced this in sage 4.8, but with different results: sage: f(x) = sin(x)^2/x^2 sage: f.integral(x, -5, 5).n() -0.20071537570 sage: f.integral(x, -500, 500).n() -2.0008410959e-7 sage: f.integral(x, -5, 5).n() -2.109169e-9 The answer seems t

Re: [sage-devel] bug in integration

2012-04-17 Thread Andrew Fleckenstein
I reproduced this in sage 4.8, but with different results: sage: f(x) = sin(x)^2/x^2 sage: f.integral(x, -5, 5).n() -0.20071537570 sage: f.integral(x, -500, 500).n() -2.0008410959e-7 sage: f.integral(x, -5, 5).n() -2.109169e-9 The answer seems t

Re: [sage-devel] Re: zeromq and @parallel for clusters

2012-04-10 Thread Andrew Fleckenstein
I am very interested as well. I'd be happy to help with anything. I would also like to be CC'd (afleckenstein) on any ticket you create. On Tue, 2012-04-10 at 06:30 -0700, Niles Johnson wrote: > > On Monday, April 9, 2012 7:07:14 AM UTC-4, Volker Braun wrote: > I think it would be of gene

Re: [sage-devel] Re: Solve produces inconsistent results when a dummy variable is involved

2012-04-07 Thread Andrew Fleckenstein
On Fri, Apr 6, 2012 at 9:58 PM, Nils Bruin wrote: > On Apr 6, 3:55 pm, William Stein wrote: > > > It does suggest we may want to consider reseting Maxima's counter for > > dummy variables before calling solve. RJF, how does one do that in > > Maxima? > > I'm fairly sure that would lead to bugs.

Re: [sage-devel] SAGE installation problem

2011-08-20 Thread Andrew Fleckenstein
On Sat, 2011-08-20 at 22:41 +, Evans Doe Ocansey wrote: > Dear all, > I was installing SAGE on an acer laptop on ubuntu 11.04 platform and > got the this error after the installation. To see the error, I click > on the link to download the install.log file. > > http://users.aims.ac.za/~evans/s