Extended bra–ket notation: Difference between revisions
Dave Keenan (talk | contribs) →Repetition, for multivectors: Deleted extraneous word "other". Added temporary fix for multicovector template ignoring "grade=3". |
Dave Keenan (talk | contribs) Added "where <math>g</math> is the grade". |
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The second extension of EBK from standard bra-ket notation is the repetition of brackets, allowing for the representation of [[multivector]]s. | The second extension of EBK from standard bra-ket notation is the repetition of brackets, allowing for the representation of [[multivector]]s. | ||
Some advanced practitioners of RTT use multivectors, such as [[wedgie]]s, as an alternative way to represent temperaments (besides mappings and comma bases). These multivectors come in various grades, such as 2-vectors and 3-vectors. In fact, ordinary vectors are simply 1-vectors. In order to distinguish a <math>g</math>-vector from a 1-vector, the brackets that would normally be used can be repeated <math>g</math> times. | Some advanced practitioners of RTT use multivectors, such as [[wedgie]]s, as an alternative way to represent temperaments (besides mappings and comma bases). These multivectors come in various grades, such as 2-vectors and 3-vectors. In fact, ordinary vectors are simply 1-vectors. In order to distinguish a <math>g</math>-vector from a 1-vector, the brackets that would normally be used can be repeated <math>g</math> times, where <math>g</math> is the grade. | ||
For example, the 2-vector (bivector) representing meantone temperament uses two sets of brackets: {{multivector|1 4 4}}. The 3-covector representing 7-limit 31-ET ⟨{{multicovector|grade=3|-87 72 -49 31}}]. | For example, the 2-vector (bivector) representing meantone temperament uses two sets of brackets: {{multivector|1 4 4}}. The 3-covector representing 7-limit 31-ET ⟨{{multicovector|grade=3|-87 72 -49 31}}]. | ||