Regarding attention, anything that does not draw directly from the Greek mainline, does not get much attention in the mainstream.
Lot of interesting mathematics was done by Indians, Persians, Arabs, Mayans.
Indian mathematics has an additional layer of obscurity. Very little was written down and when it was it was written down in picturesque and poetic verses (as a mnemonic device) that used a lot of symbolism and imagery. For the number one they will mention the Sun, for two the moon and so on, these mappings would also change from work to work, chapter to chapter. So one needs a lot of context to understand what a document is saying.
For example the source of the approximation above is described as follows (literal translation) [1]
The degree of the arc, subtracted from the total degrees of half a circle, multiplied by the remainder from that [subtraction], are put down twice. [In one place] they are subtracted from sky-cloud-arrow-sky-ocean [40500]; [in] the second place,
[divided] by one-fourth of [that] remainder [and] multiplied by the final result
[i.e., the trigonometric radius].
Lot of interesting mathematics was done by Indians, Persians, Arabs, Mayans.
Indian mathematics has an additional layer of obscurity. Very little was written down and when it was it was written down in picturesque and poetic verses (as a mnemonic device) that used a lot of symbolism and imagery. For the number one they will mention the Sun, for two the moon and so on, these mappings would also change from work to work, chapter to chapter. So one needs a lot of context to understand what a document is saying.
For example the source of the approximation above is described as follows (literal translation) [1]
The degree of the arc, subtracted from the total degrees of half a circle, multiplied by the remainder from that [subtraction], are put down twice. [In one place] they are subtracted from sky-cloud-arrow-sky-ocean [40500]; [in] the second place, [divided] by one-fourth of [that] remainder [and] multiplied by the final result [i.e., the trigonometric radius].
[1] Kim Plofker, Mathematics in India.