[Merged by Bors] - doc(RingTheory/Polynomial/GaussNorm): add sentence about heights of polynomials

[fbarroero]

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[github-actions]

PR summary 31b5cb4bf4

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Files	Import difference

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Declarations diff

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## summary with just the declaration names:
./scripts/declarations_diff.sh <optional_commit>

## more verbose report:
./scripts/declarations_diff.sh long <optional_commit>

The doc-module for script/declarations_diff.sh contains some details about this script.

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./scripts/technical-debt-metrics.sh pr_summary

• The relative value is the weighted sum of the differences with weight given by the inverse of the current value of the statistic.
• The absolute value is the relative value divided by the total sum of the inverses of the current values (i.e. the weighted average of the differences).

[Copilot]

Pull request overview

This PR adds documentation to clarify the connection between the Gauss norm and the concept of polynomial heights in algebraic number theory.

• Explains that the Gauss norm is most useful when v is an absolute value and c = 1
• Notes that when R is a subring of ℂ with standard absolute value, this is called the "height" of the polynomial

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[erdOne]

Thanks!
maintainer merge

[github-actions]

🚀 Pull request has been placed on the maintainer queue by erdOne.

[riccardobrasca]

Thanks!

bors merge

[mathlib-bors]

This PR was included in a batch that was canceled, it will be automatically retried

[mathlib-bors]

Pull request successfully merged into master.

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