This site is supported by donations to The OEIS Foundation.
Real part
From OeisWiki
ℜ (z) |
z = r e i θ = r cos θ + i r sin θ = a + i b = ℜ (z) + i ℑ (z) |
-
ℜ (z) := a =
= r cos θ,z + z̅ 2
z̅ |
z |
For example,
ℜ (3 + √ − 5 ) = 3 |
The real part of a zero of the Riemann zeta function is either an even negative integer (for trivial zeros) or
|
Compare imaginary part.