Word origin · etymology
Editorial mathematical title.
Frame names a reference structure; transformation means a change of form. The heading describes ways of re-expressing chart positions under a stated rule.
How we know · epistemology
Editorial subject classification
“Chart frames & transformations” is a browsing category chosen for this atlas. Its child entries share a topic or practical connection. This grouping is not evidence that all of them descend from one historical lineage; transmission claims require separate sources.
Connected concepts
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These links connect subjects and terminology. They do not establish a shared historical origin.
Sources & provenance
Use the citations beside each section to distinguish a calculation convention, a historical teaching and an editorial example.