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Printing of polynomial over FF #21409

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sylee957 opened this issue May 1, 2021 · 0 comments

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polys

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sylee957 commented May 1, 2021

from sympy import *

R, x = ring('x', FF(7))
print(x**2 + 4*x + 3)

It prints out in unreadable form as

x**2 + 4 mod 7*x + 3 mod 7

The text was updated successfully, but these errors were encountered:

sylee957 added the polys label

skirpichev added a commit to skirpichev/diofant that referenced this issue


          printing: adapt str() printing for elements of finite fields (prime o…

e3d73b2

…rder)

There are alternatives:
https://en.wikipedia.org/wiki/Modular_arithmetic#Integers_modulo_n
https://reference.wolfram.com/language/FiniteFields/tutorial/FiniteFields.html
(with subscripts etc).  Neither looks good with the DejaVu fonts (but
might be used for the latex() printing).

The current look resembles the SageMath, e.g.:
https://doc.sagemath.org/html/en/tutorial/tour_polynomial.html

Closes sympy/sympy#21409

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