Re: [Numpy-discussion] Characteristic of a Matrix.

2015-01-07 Thread cjw
Thanks Alexander, I'll look at Sage. Colin W. On 06-Jan-15 8:38 PM, Alexander Belopolsky wrote: On Tue, Jan 6, 2015 at 8:20 PM, Nathaniel Smith wrote: Since matrices are now part of some high school curricula,

Re: [Numpy-discussion] Characteristic of a Matrix.

2015-01-07 Thread cjw
Nathaniel, Of the two characteristics to which I pointed, I feel that the rectangularity check is the more important. I gave an example of a typo which demonstrated this problem. The error message reported that pinv does not have a conjugate function which, I suggest, is a totally misleading

Re: [Numpy-discussion] The future of ndarray.diagonal()

2015-01-07 Thread Matthew Brett
Hi, On Sun, Jan 4, 2015 at 4:22 PM, Konrad Hinsen wrote: > 2) Changes that yield to different results for unmodified legacy code > should never be allowed. I think this is a very reasonable rule. Case in point - I have some fairly old code in https://github.com/matthew-brett/transforms3d . I h