[ntuple] add tutorial for low-precision float fields

[silverweed]

No description provided.

[linev]

Thanks!

[github-actions]

Test Results

    22 files      22 suites   3d 6h 57m 18s ⏱️
 3 799 tests  3 797 ✅ 0 💤 2 ❌
75 510 runs  75 508 ✅ 0 💤 2 ❌

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Results for commit 1a9151a.

♻️ This comment has been updated with latest results.

[enirolf]

LGTM :)

[jblomer]

Nice! Please also update the index.md in the parent directory.

Possibly: the tutorial could create a plot that shows how a distribution becomes fuzzier at lower precision (but then perhaps one should also print space savings).

[silverweed]

Possibly: the tutorial could create a plot that shows how a distribution becomes fuzzier at lower precision (but then perhaps one should also print space savings).

I think in the case of a specialized tutorial like this "less is more", so I'd rather limit the code not related to how the feature is used to a minimum..