It still involves e, though: sech(x) = 2 \* e^x / (e^(2x) + 1) Makes sense, give...

		JoshTriplett 9 months ago \| parent \| context \| favorite \| on: 100 Years to Solve an Integral (2020) It still involves e, though: sech(x) = 2 * e^x / (e^(2x) + 1) Makes sense, given that the definition of e goes hand in hand with its property of e^x being its own integral and derivative.