• reflex@kbin.social
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    1 year ago

    Did my undergrad in math and never learned what that capital pi-looking thing was. Sigmas all the tyme doe.

      • mohKohn@kbin.social
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        1 year ago

        They come up in complex analysis bc writing polynomials in terms of their roots is sometimes useful.

    • Kogasa@programming.dev
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      1 year ago

      Convergence issues aside, you can get from a product to a sum by taking logarithms. This is often a feasible way to reason about them / prove results about them.