Comments (4)
cdrnet
commented on May 24, 2024
One could indeed argue the One and MinusOne active patterns should not include approximative values. Maybe also Zero, although the floating point precicion is less of an issue there. A follow up question is then whether we still want 1.0/0.0 to simplify to complex infinity.
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diluculo
commented on May 24, 2024
Thanks for quick answer. I got it. There are many hidden rules and layers. I thought simply it would be a good idea to add ExactOne.
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cdrnet
commented on May 24, 2024
Yes, either that, or add ApproxOne and change the existing One to no longer include approximative values.
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cdrnet
commented on May 24, 2024
I've recently removed the parts where 1.0 was interpreted as 1 and 0.0 was interpreted as 0. I agree with the reasoning.
| Infix string | Expression | RealValue | Note |
|---|---|---|---|
| 1.2 | Approximation (Real 1.2) | 1.2 | |
| 1.0 + 1/5 | Approximation (Real 1.2) | 1.2 | |
| 1 + 1.0/5 | Approximation (Real 1.2) | 1.2 | (Fixed) |
| 1 + 1/5 | Number 6/5N | 1.2 | |
| 6/5 | Number 6/5N | 1.2 | |
| 6.0/5 | Approximation (Real 1.2) | 1.2 | |
| 6.0/5 - 6/5 | Approximation ... | 2.2204460492503131E-16 | Machine Epsilon |
I think this resolved this issue? Thanks again for bringing this up!
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