Not SymPy, but the Uncertainties (Python module) does what you want
if you use "print(x)", where x is a ufloat number (with uncertainties).
https://pythonhosted.org/uncertainties/user_guide.html#printing
Em 17/11/2022 10:30, gu...@uwosh.edu escreveu:
An alternative interpretation of your question is that you are asking
if sympy is aware of the rules for propagating significant digits
through calculations? The answer is no. You have to apply the rules
yourself to decide appropriate rounding.
Additional alternatives: 1) set up interval arithmetic to get a more
precise version of the significant figures rules; 2) do full error
propagation to determine uncertainties in your computations.
Jonathan
On Thursday, November 17, 2022 at 4:04:20 AM UTC-6 Oscar wrote:
The ordinary Python round function can do this:
https://docs.python.org/3/library/functions.html#round
On Thu, 17 Nov 2022 at 09:46, Peter Stahlecker
<peter.st...@gmail.com> wrote:
you might want to check floating point numbers in the sympy
documentation.
Am Do., 17. Nov. 2022 um 10:18 Uhr schrieb 'XR-7 RKE' via
sympy <sy...@googlegroups.com>:
Hey guys,
Does sympy support round a number to significant figures?
SCR-20221117-m64.png
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