AngouriMath
ToSymPyExactly(AngouriMath.Entity)
Method (no overloads)
Summary
The operand written so that SymPy does the arithmetic rather than Python.
Remarks
Python's / and its ** with a negative exponent are float operations on two
integers, so an exact value would leave here inexact:1 / 2 is 0.5 there,
andsympify(0.5) is a Float and not Rational(1, 2) — the exactness
is gone before SymPy sees the expression, and nothing downstream recovers it. Making one
operand a SymPy integer is enough, since its operators sympify the other side.
operators already take over, and+ , - , * and a non-negative
** are exact on Python integers, whose precision is unbounded.
https://github.com/asc-community/AngouriMath/issues/911
integers, so an exact value would leave here inexact:
and
is gone before SymPy sees the expression, and nothing downstream recovers it. Making one
operand a SymPy integer is enough, since its operators sympify the other side.
operators already take over, and
https://github.com/asc-community/AngouriMath/issues/911
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