Timeline for How to disable roundoff error tracking in arbitrary precision arithmetic?
Current License: CC BY-SA 3.0
4 events
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| Nov 3, 2016 at 20:22 | comment | added | Daniel Lichtblau |
Right. SetPrecision as used above is intentionally subverting the precision tracking system, so it should be done only in situations where one knows it is appropriate.
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| Nov 3, 2016 at 20:13 | vote | accept | Ruslan | ||
| Nov 3, 2016 at 20:13 | comment | added | Ruslan |
This is great! A caveat with SetPrecision is that if the result has zero digits of precision, it'll give very precise zero instead of what you'd get with FixedPrecisionEvaluate: see e.g. SetPrecision[((2`2^2`1)^2`1)^2`1, 10].
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| Nov 3, 2016 at 20:05 | history | answered | Daniel Lichtblau | CC BY-SA 3.0 |