# \#inf

**URL:** https://discourse.julialang.org/tag/inf/1264.md

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## [\[ANN\] MathChecker.jl: Find problems in floating-point calculations](https://discourse.julialang.org/t/ann-mathchecker-jl-find-problems-in-floating-point-calculations/139261)

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**Author:** [@moble](https://discourse.julialang.org/u/moble)\
**Replies:** 6\
**Last updated:** [September 10, 2026, 4:01pm UTC](https://discourse.julialang.org/t/ann-mathchecker-jl-find-problems-in-floating-point-calculations/139261 "2026-09-10T16:01:50Z")

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I’m always surprised this isn’t a bigger topic of conversation among Julia users: how to find where problems are coming from in numerics. The gap between our pretty equations and algorithms on one hand, and practical …

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## [Trying Julia for Analytic combinatorics](https://discourse.julialang.org/t/trying-julia-for-analytic-combinatorics/103682)

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**Author:** [@fargolo](https://discourse.julialang.org/u/fargolo)\
**Replies:** 10\
**Last updated:** [July 9, 2026, 10:22pm UTC](https://discourse.julialang.org/t/trying-julia-for-analytic-combinatorics/103682 "2026-07-09T22:22:11Z")

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Hello, fellow colleagues in the Julia community. This question may not be a good fit for the Julia Discourse, but any help is appreciated. I was exploring Analytic Combinatorics (by Flajolet & Sedgewick). The part abou…

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## [Isusefulnumber()](https://discourse.julialang.org/t/isusefulnumber/93795)

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**Author:** [@ellocco](https://discourse.julialang.org/u/ellocco)\
**Replies:** 2\
**Last updated:** [January 30, 2023, 10:24pm UTC](https://discourse.julialang.org/t/isusefulnumber/93795 "2023-01-30T22:24:45Z")

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Is there a function available to check in a large vector, if one of the following occurs in a vector: missing nothing Inf NaN ? Here is my snippet to investigate a vector for such elements: a = \[1.3, NaN, Inf, missi…