The celestial sphere for observers in Seattle and any other observer at the same latitude (47Â° N) on the Earth is shown above. For another more detailed example, let's choose Los Angeles at latitude 34Â° N. The NCP is therefore 34 degrees above the north horizon.
Euler number. For other uses, see List of things named after Leonhard Euler Â§ Euler's numbers. In mathematics, the Euler numbers are a sequence En of integers (sequence A122045 in the OEIS) defined by the Taylor series expansion. where cosh t is the hyperbolic cosine. The Euler numbers appear as a special value of the Euler polynomials.
The answer is in the following product taken over the primes p (also discovered by Euler): Euler wrote this as Riemann later extended the definition of (s) to all complex numbers s (except the simple pole at s =1 with residue one). Euler's product still holds if the real part of s is greater than one.