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nLab > Latest Changes: pi

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  1.  
    • CommentRowNumber1.
    • CommentAuthorTodd_Trimble
    • CommentTimeNov 26th 2017

    I made a note of the fact that simple high-school algebra applied to the “Archimdean definition” of pi leads to the Vieta product formula.

    • CommentRowNumber2.
    • CommentAuthorUrs
    • CommentTimeNov 26th 2017
    • (edited Nov 26th 2017)

    since definitions of the sine function should be kept in an entry of that name, I copied them to there.

    • CommentRowNumber3.
    • CommentAuthorDavidRoberts
    • CommentTimeOct 4th 2018

    Updated an nForum link from the mathforge domain to the ncatlab domain.

    diff, v19, current

  4. Just a trivial query about terminology: though it makes sense, I had not seen the term ’hemicircle’ used before, having always rather seen ’semicircle’. Is ’hemicircle’ in widespread use?

    • CommentRowNumber5.
    • CommentAuthorTodd_Trimble
    • CommentTimeOct 4th 2018

    I saw that too. Urs wrote that, seemingly in view of the parallel term hemisphere that he linked to.

    • CommentRowNumber6.
    • CommentAuthorUrs
    • CommentTimeOct 4th 2018

    Fixed now.

    • CommentRowNumber7.
    • CommentAuthorUrs
    • CommentTimeFeb 9th 2023
    • (edited Feb 9th 2023)

    added references on the BBP formula (here)

    diff, v26, current

1 to 7 of 7

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