Comments for barrywardell.net http://www.barrywardell.net Barry Wardell's site Mon, 19 Sep 2011 15:33:00 +0000 hourly 1 http://wordpress.org/?v=3.3.1 Comment on GRTensor: Metrics and Mac OS X by Nico http://www.barrywardell.net/research/grtensormetricsandosx#comment-596 Nico Mon, 19 Sep 2011 15:33:00 +0000 http://www.barrywardell.net/?p=38#comment-596 Hi Barry, That's a nice comment, but I've run into a different problem and I was wondering if you had any suggestions. I've recently installed OS Lion, and of course, I had to install Maple 15, as Maple 12 (the version I used to be running) is not supported in Lion anymore (PowerPC support is gone!). In any case, grtensor doesn't seem to be working anymore on Maple 15. I had been using Maple 12 + grtensor for the longest time (with the : trick that you mentioned above), but this is not the problem now. The first problem seems to be that when I load grtensor, it doesn't seem to load properly. I type: grtw(); and the output is not centered on the screen as it used to be. The real problem, however, is when I try to load a metric qload(metric); and I get the error message: Error, (in grF_core) unrecognized conversion Has anybody run into this ? Thanks for your help. Hi Barry,

That’s a nice comment, but I’ve run into a different problem and I was wondering if you had any suggestions. I’ve recently installed OS Lion, and of course, I had to install Maple 15, as Maple 12 (the version I used to be running) is not supported in Lion anymore (PowerPC support is gone!). In any case, grtensor doesn’t seem to be working anymore on Maple 15. I had been using Maple 12 + grtensor for the longest time (with the : trick that you mentioned above), but this is not the problem now.

The first problem seems to be that when I load grtensor, it doesn’t seem to load properly. I type: grtw(); and the output is not centered on the screen as it used to be. The real problem, however, is when I try to load a metric qload(metric); and I get the error message:

Error, (in grF_core) unrecognized conversion

Has anybody run into this ? Thanks for your help.

]]> Comment on GRTensor: Metrics and Mac OS X by barry http://www.barrywardell.net/research/grtensormetricsandosx#comment-580 barry Wed, 14 Sep 2011 14:05:35 +0000 http://www.barrywardell.net/?p=38#comment-580 You may have already discovered the answer, but in this case, you probably also need to use sudo for the third and fourth commands, e.g. <code> $ sudo chmod +x fixmetrics.sh $ sudo ./fixmetrics.sh </code> You may have already discovered the answer, but in this case, you probably also need to use sudo for the third and fourth commands, e.g.


$ sudo chmod +x fixmetrics.sh
$ sudo ./fixmetrics.sh

]]> Comment on GRTensor: Metrics and Mac OS X by Tessa http://www.barrywardell.net/research/grtensormetricsandosx#comment-561 Tessa Thu, 01 Sep 2011 11:38:40 +0000 http://www.barrywardell.net/?p=38#comment-561 Just what I needed, thanks very much! NB: I'm using version 1.79 of GRTensor2 and Maple 15, and the bug is still there. Now if only I had found this page earlier... Just what I needed, thanks very much!

NB: I’m using version 1.79 of GRTensor2 and Maple 15, and the bug is still there.

Now if only I had found this page earlier…

]]> Comment on GRTensor: Metrics and Mac OS X by Yacine http://www.barrywardell.net/research/grtensormetricsandosx#comment-80 Yacine Fri, 18 Feb 2011 01:47:05 +0000 http://www.barrywardell.net/?p=38#comment-80 Very useful, thank you very much! Very useful, thank you very much!

]]> Comment on GRTensor: Metrics and Mac OS X by Saeed http://www.barrywardell.net/research/grtensormetricsandosx#comment-29 Saeed Sun, 28 Nov 2010 04:54:29 +0000 http://www.barrywardell.net/?p=38#comment-29 Thanks for your useful hints. The first one about installing GRTensorII worked in my Mac but I have the following error after running the third line of your commands in this page for initializing the metric sources, i.e. chmod +x fixmetrics.sh. error: chmod: Unable to change file mode on fixmetrics.sh: Operation not permitted Any comment or suggestion is more than welcome. S. Thanks for your useful hints. The first one about installing GRTensorII worked in my Mac but I have the following error after running the third line of your commands in this page for initializing the metric sources, i.e. chmod +x fixmetrics.sh.
error:
chmod: Unable to change file mode on fixmetrics.sh: Operation not permitted

Any comment or suggestion is more than welcome.
S.

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