Temperament merging: Difference between revisions

Cmloegcmluin (talk | contribs)
Cmloegcmluin (talk | contribs)
Parallel intersections: format diagrams better
Line 233: Line 233:


== Parallel intersections ==
== Parallel intersections ==
[[File:Map-merge.png|400px|thumb|left|A map-merge gives a comma-intersection (for purposes of illustrating this concept, the results are not being canonicalized).]]
[[File:Comma-merge.png|400px|thumb|right|A comma-merge gives a map-intersection (for purposes of illustrating this concept, the results are not being canonicalized).]]


Every temperament mapping has a dual comma basis, and every comma basis has a dual mapping. Because of this duality, a special parallelism exists.
Every temperament mapping has a dual comma basis, and every comma basis has a dual mapping. Because of this duality, a special parallelism exists.
Line 244: Line 241:


In this sense, map-merging and comma-merging should be understood not truly as operations on matrices, but as operations on [[basis|bases]]. Another way to describe these such intersections would be as bases for the [[linear dependence]] of the given temperaments, as described here: [[Linear dependence#For a given set of basis matrices, how to compute a basis for their linearly dependent vectors]].
In this sense, map-merging and comma-merging should be understood not truly as operations on matrices, but as operations on [[basis|bases]]. Another way to describe these such intersections would be as bases for the [[linear dependence]] of the given temperaments, as described here: [[Linear dependence#For a given set of basis matrices, how to compute a basis for their linearly dependent vectors]].
<gallery heights=450px widths=450px>
File:Map-merge.png|A map-merge gives a comma-intersection (for purposes of illustrating this concept, the results are not being canonicalized).
File:Comma-merge.png|A comma-merge gives a map-intersection (for purposes of illustrating this concept, the results are not being canonicalized).
</gallery>


== Example system of temperaments related by merging ==
== Example system of temperaments related by merging ==