Thanks. Looks needlessly complicated. I did see significant errors crop up when I tried use <number>.n(4) etc. So, your warning is pretty wise.
Is there a way to extract the mantissa from a number (in base 10 - I do know that sign_mantissa_exponent() does it in base 2, which is not terribly useful). Alternatively, is there support for printf formats (C) ? On Feb 28, 4:46 am, Volker Braun <[email protected]> wrote: > On Sunday, February 27, 2011 8:59:25 PM UTC, sm123123 wrote: > > > I have numerical calculations that need to adhere to significant > > digits of the input. > > Sage has at least three different "real" numbers, see > > http://www.sagemath.org/doc/reference/rings_numerical.html > > Each implementation is a different tradeoff between accuracy and speed. If > you want to be assured that each digit is correct then you probably want to > use the real interval field (RIF). -- To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org
