On 23/06/2020 15:12, Ricky Teachey wrote:
On Tue, Jun 23, 2020 at 9:08 AM Mathew Elman <mathew.el...@ocado.com> wrote:

Well there you go, good point.
I didn't really like it being an operator myself. But I can see having a
math.tolerance class being useful.

On Tue, 23 Jun 2020 at 13:53, Jonathan Goble <jcgob...@gmail.com> wrote:

On Tue, Jun 23, 2020 at 8:44 AM Mathew Elman <mathew.el...@ocado.com>
wrote:

Perhaps a more versatile operator would be to introduce a +- operator
that would return an object with an __eq__ method that checks for equality
in the tolerance i.e

     a == b +- 0.5


This is already valid syntax, because unary minus is a thing. So this is
currently parsed as "a == b + (-0.5)".

Reversing it to use -+ won't work because unary plus is also a thing.


A little bit out of the box, but what about:

a == b +/- 0.5

...or even:

a == b +or- 0.5

Is "math.isclose(a, b, abs_tol=0.5)" really so hard to use?


--
Rhodri James *-* Kynesim Ltd
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