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1 dzień temu · The area of the blue region converges to Euler's constant. Euler's constant (sometimes called the Euler–Mascheroni constant) is a mathematical constant, usually denoted by the lowercase Greek letter gamma (γ), defined as the limiting difference between the harmonic series and the natural logarithm, denoted here by log: = ( + =) = (+ ⌊ ⌋). Here, ⌊·⌋ represents the floor function.
7 godz. temu · An explanation of logistic regression can begin with an explanation of the standard logistic function. The logistic function is a sigmoid function, which takes any real input , and outputs a value between zero and one. [2] For the logit, this is interpreted as taking input log-odds and having output probability.
7 godz. temu · The natural logarithm of a number is its logarithm to the base of the mathematical constant e, which is an irrational and transcendental number approximately equal to 2.718 281 828 459. The natural logarithm of x is generally written as ln x, log e x, or sometimes, if the base e is implicit, simply log x. Parentheses are sometimes added for clarity, giving ln(x), log e (x), or log(x).
7 godz. temu · Linearity. The Schrödinger equation is a linear differential equation, meaning that if two state vectors and are solutions, then so is any linear combination of the two state vectors where a and b are any complex numbers. [13] : 25 Moreover, the sum can be extended for any number of state vectors.
7 godz. temu · STV ballot papers from the 2011 Irish general election. The single transferable vote (STV), sometimes mistakenly conflated with proportional ranked choice voting (P-RCV), is a weakly-proportional family of multi-winner electoral systems.They are a variation on the largest remainders method that uses solid coalitions rather than party lists.Votes in excess of an electoral quota are transferred ...
