[sage-devel] Re: abs(-pi)=-pi

2015-11-13 Thread Anthony Wickstead
Glad to hear it is fixed. This arose in a university computer lab setting where updates to the image are only feasible annually. Won't get new version running until next autumn! -- You received this message because you are subscribed to the Google Groups "sage-devel" group. To unsubscribe fro

[sage-devel] abs(-pi)=-pi

2015-11-13 Thread Anthony Wickstead
I have just discovered that in Sage 6.7 abs(-pi)=-pi, abs(-sqrt(2))=-sqrt(2) etc. Previous version I used was 6.2 and I am fairly sure it was not the case then. Can't find earlier reference to this bug. -- You received this message because you are subscribed to the Google Groups "sage-devel" g

[sage-devel] Re: Wierd behaviour of plot() and sqrt()

2012-07-27 Thread Anthony Wickstead
Thanks to everyone for the replies here and the direct emails from Rob McMahon and Juan Arias de Reyna. I was trying to isolate my problem and only succeeded in introducing more confusion. My background is that I have been using Mathematica for teaching for the past 20+ years and find it diffic

[sage-devel] Re: Wierd behaviour of plot() and sqrt()

2012-07-26 Thread Anthony Wickstead
Earlier post sent prematurely by acciident, sorry! On Thursday, July 26, 2012 3:47:34 PM UTC+1, Anthony Wickstead wrote: > > I don't think I am doing anything stupid, but I am fairly new to Sage. > > I am using Sage 5.0 (Ubuntu 12.04 64 bit, running under Virtualbox) but >

[sage-devel] Wierd behaviour of plot() and sqrt()

2012-07-26 Thread Anthony Wickstead
I don't think I am doing anything stupid, but I am fairly new to Sage. I am using Sage 5.0 (Ubuntu 12.04 64 bit, running under Virtualbox) but the same behaviour occurs with Sage 4.7 running under Debian (not sure of version). I am trying to plot the graph of h(a,x) fo a range of values of a.

[sage-devel] Re: VirtualBox testers needed

2012-06-08 Thread Anthony Wickstead
On Jun 7, 9:01 pm, Keshav Kini wrote: > Anthony Wickstead writes: > > Using 64 bit Ubuntu 12.04 inside VirtualBox 4.14 under Windows 7, I was > > able to > > make sage-5.0.1.rc0 with no errors. > > What hardware CPU does your computer have? Intel Core i5-2520M @ 2.

[sage-devel] Re: VirtualBox testers needed

2012-06-07 Thread Anthony Wickstead
Using 64 bit Ubuntu 12.04 inside VirtualBox 4.14 under Windows 7, I was able to make sage-5.0.1.rc0 with no errors. Running ./sage –testall resulted in just one error: Sage –t –force_lib “devel/sage/sage/schemes/plane_curves/curve.py” Tony Wickstead -- To post to this group, send an emai