I was making a "convert Fraction to Decimal, exactly if possible" function and ran into a wall: it's not possible to do some of the necessary operations with exact precision in decimal:
- multiplication - division where the result can be represented exactly [the divisor is an integer whose prime factors are only two and five, or a rational number whose numerator qualifies] I assume there's some way around it that I haven't spent enough time to figure out [create a temporary context with sufficint digits for multiplication, and work out the reciprocal power of 10 by hand to use this multiplication to implement division], but I feel like these exact operations should be supported in the standard library. _______________________________________________ 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/AEOK6HJJAEG65YO7T4C3KLQ4BPLX735T/ Code of Conduct: http://python.org/psf/codeofconduct/
