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An integral that is close but not equal to pi/8, discussed here: https://mathworld.wolfram.com/InfiniteCosineProductIntegral.html

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https://media.mathstodon.xyz/media_attachments/files/109/626/441/451/361/121/original/5437988fba472c18.jpg

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  1. Embed this notice
    John Carlos Baez (johncarlosbaez@mathstodon.xyz)'s status on Thursday, 05-Jan-2023 16:04:00 JST John Carlos Baez John Carlos Baez

    @robinhouston brought this amazing fact to our attention.

    It's been studied by some very smart people, like Borwein and Bailey. It's still mysterious. But we're trying to figure it out here:

    https://mathstodon.xyz/@robinhouston/109622019655110557

    In conversation Thursday, 05-Jan-2023 16:04:00 JST from mathstodon.xyz permalink
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