1729/1728: Difference between revisions
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1729/1728, the massma, is a 19-limit superparticular interval and an unnoticeable comma. | {{Infobox Interval | ||
| Icon = | |||
| Ratio = 1729/1728 | |||
| Monzo = -6 -3 0 1 0 1 0 1 | |||
| Cents = 1.00158 | |||
| Name = massma, <br>Ramanujan's comma | |||
| Color name = | |||
| FJS name = | |||
| Sound = | |||
}} | |||
1729/1728, the massma, is a 19-limit (more accurately, 2.3.7.13.19 subgroup) superparticular interval and an unnoticeable comma. | |||
Both the numerator and denominator of this interval are famous in mathematics. 1728, being 12 to the 3rd power, is also known as mass. 1729 is known for being the first number that can be expressed as a sum of more than 1 integer cubes. | Both the numerator and denominator of this interval are famous in mathematics. 1728, being 12 to the 3rd power, is also known as mass. 1729 is known for being Ramanujan's number and the first number that can be expressed as a sum of more than 1 integer cubes. | ||
Remarkably, this comma is very close to one cent. | |||
== See also == | == See also == | ||
* [[Wikipedia:1728 (number)]] | * [[Wikipedia:1728 (number)]] | ||
* [[Wikipedia:1729 (number)]] | * [[Wikipedia:1729 (number)]] | ||