[sage-support] Re: Problem installing sage on High Sierra (Mac OS 10.13)

2017-10-16 Thread John H Palmieri
It looks like you haven't installed the OS X command line tools, or they got removed when you updated to High Sierra. Try (re)installing them: run "xcode-select --install" from a terminal window. On Monday, October 16, 2017 at 7:58:33 PM UTC-7, moep wrote: > > Thanks for the response! I tried

Re: [sage-support] Simplifying symbolic expression with radicals

2017-10-16 Thread Michael Orlitzky
On 10/16/2017 04:21 PM, Emily G wrote: > > (*2* + sqrt(*2*))/(*1* + sqrt(*2*)) > > The above example should simplify to sqrt(2), > but simplify_full() and canonicalize_radical() don't work. Is there a > way that I can get Sage to simplify such expressions? > This gets the result that you want,

[sage-support] Re: Problem installing sage on High Sierra (Mac OS 10.13)

2017-10-16 Thread John H Palmieri
You have at least two choices. For both, start by downloading (http://www.sagemath.org/download-source.html) and unpacking sage-8.0.tar.gz wherever you plan to build it. Choice 1: install git-trac-config: see

[sage-support] Simplifying symbolic expression with radicals

2017-10-16 Thread Emily G
Hello, I am trying to find out whether I can get Sage to simplify expressions such as these (and other radicals that are not square root): (*2* + sqrt(*2*))/(*1* + sqrt(*2*)) The above example should simplify to sqrt(2), but simplify_full() and canonicalize_radical() don't work. Is there a

[sage-support] Re: Problem installing sage on High Sierra (Mac OS 10.13)

2017-10-16 Thread Ling Lin
Hi, I'm having a similar problem, since I have to install Sage on a new computer (Macbook Pro 2017 with OS10.13). I think the issue is again with building gcc-5.4.0, which was mentioned in ticket ##23898. Since I'm not familiar with git, I cloned the repository for both the master and

[sage-support] Re: Possible bug with surfaces opacity in threejs

2017-10-16 Thread Andrey Novoseltsev
It is known - I have complained several times over the years, but my understanding is that solving this is difficult. It has to do with the algorithm that throws away triangles as invisible, and when the surface is simple like a plain and contains few triangles, you see this behaviour. It can