You examples would work even if precedence of negation equals precedence of
Mul.
And PRECEDENE['Add'] doesn't work for Unevaluated(-x)*y. It will output
(-x)*y.
Negation is just a Mul.
On Thursday, March 25, 2021 at 9:55:06 AM UTC+2 asme...@gmail.com wrote:
> The precedence in the printers is
The precedence in the printers is just about where it needs to add
parentheses. I suppose negation is the same as Add because it doesn't
require parentheses for anything with a higher precedence. For
instance -x*y is fine rather than -(x*y), but -(x + y) requires the
parentheses.
Aaron Meurer
On
from sympy.printing.precedence, PRECEDENCE
precedence(-x) == PRECEDENCE['Add']
It gives True.
On Wednesday, March 24, 2021 at 10:36:52 PM UTC+2 asme...@gmail.com wrote:
> Can you clarify what you mean by this?
>
> The precedence of operators in Python is determined by the language.
> See
>
Can you clarify what you mean by this?
The precedence of operators in Python is determined by the language.
See https://docs.python.org/3/reference/expressions.html#operator-precedence.
Unary - has a higher precedence than binary + (or binary -).
In SymPy, -x is represented as (-1)*x, but this
Is there any reason why precedence of -x equals precedence of Add?
-x is (-1)*x
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