Christopher Barker writes: > sure -- but the error analysis is harder for computations that use a > mixture of Fraction and float, and it's not obvious where which is > used.
I don't understand what the problem is. Fractions are just a field of computer numbers where all the computations give exact results. Same with ints. The error analyis is harder if you want to take advantage of exact rational arithmetic for Fraction-Fraction operations, but the same would be true for ints, or many powers-of-two operations for IEEE binary floats, etc. Do folks actually compute those tighter bounds where the information is available, eg, if the data happen to be ints? > Anyway, it looks like this was always about (or was transformed into) an > idea to better support symbolic math, which is in a new thread now. "Always was." _______________________________________________ Python-ideas mailing list -- python-ideas@python.org To unsubscribe send an email to python-ideas-le...@python.org https://mail.python.org/mailman3/lists/python-ideas.python.org/ Message archived at https://mail.python.org/archives/list/python-ideas@python.org/message/7UO4CVQ6UC3XIQYB3TGCFZBCF5ST7TU7/ Code of Conduct: http://python.org/psf/codeofconduct/
