Is there a repository of billions of mathematical constants, computed say with 15 digits of accuracy, so that when you find a number, say $5.859874482$, it tells you that it matches the first $9$ digits of (in this particular example) $\pi+e$? Ideally, some online platform where you enter your number and it shows the closest constant in the database. I know OEIS.org has a bunch of constants, but I am not sure how to do this type of search on this platform. Sometimes a Google search will work, but most of the time it does not work. Incidentally, if you search for "$5.859874482$" on Google, you actually get the answer! This would be very useful to discover new relationships or put an exact value on some series or integrals that you computed with 15 digits of accuracy.
2026-03-30 22:57:27.1774911447
Large database of mathematical constants
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