搜尋結果
18 小時前 · The global average sea level has risen about 250 millimetres (9.8 in) since 1880. [1] Sea surface height change from 1992 to 2019 – NASA. The visualization is based on data collected from the TOPEX/Poseidon, Jason-1, Jason-2, and Jason-3 satellites. Blue regions are where sea level has gone down, and orange/red regions are where sea level has ...
18 小時前 · In mathematics. Six is the smallest positive integer which is neither a square number nor a prime number. It is the second smallest composite number after four, equal to the sum and the product of its three proper divisors ( 1, 2 and 3 ). [1] As such, 6 is the only number that is both the sum and product of three consecutive positive numbers.
18 小時前 · Eugenics (/ j uː ˈ dʒ ɛ n ɪ k s / yoo-JEN-iks; from Ancient Greek εύ (eû) 'good, well', and -γενής (genḗs) 'come into being, growing') [1] is a set of beliefs and practices that aim to improve the genetic quality of a human population. [2] [3] [4] Historically, eugenicists have attempted to alter human gene pools by excluding people and groups judged to be inferior or promoting ...
18 小時前 · Big O notation is a mathematical notation that describes the limiting behavior of a function when the argument tends towards a particular value or infinity. Big O is a member of a family of notations invented by German mathematicians Paul Bachmann, [1] Edmund Landau, [2] and others, collectively called Bachmann–Landau notation or asymptotic notation.
