The Lisunov Li-2 (NATO reporting name: Cab), originally designated PS-84, was a license-built Soviet-version of the Douglas DC-3. It was produced by Factory #84 in Moscow-Khimki and, …

In mathematics, the dilogarithm (or Spence's function), denoted as Li2(z), is a particular case of the polylogarithm. Two related special functions are referred to as Spence's function, the …

Sep 20, 2023 · Li 2 +, Li 2 –, Li 2 2+, and Li 2 2- are molecular ions formed by the loss or gain of electrons in the valence shell atomic orbitals of individual Li-atoms. The bond order follows the …

The dilogarithm can be defined by the sum Li_2(z)=sum_(k=1)^infty(z^k)/(k^2) ... The dilogarithm Li_2(z) is a special case of the polylogarithm Li_n(z) for n=2. Note that the notation Li_2(x) is …

In mathematics, the logarithmic integral function or integral logarithm li (x) is a special function. It is relevant in problems of physics and has number theoretic significance.

Jan 30, 2023 · Recently, the study of the energies of electrons in molecules revealed that the relative energy levels of molecular orbitals of Li2 Li 2 to N2 N 2 are different from those of O2 …

Nov 16, 2022 · The value of $\newcommand{\li}{\operatorname{Li}}\li_2(1/2-i/2)$ can be deduced from the identity $$\li_2\left(\frac1{1-z}\right)=\li_2(z)+\frac{\pi^2}6+\ln(-z)\ln(1-z)-\frac12\ln^2(1 …

\\large{\\text{Li}\\left( x \\right)=\\int_{0}^{2}\\frac{{\\rm d}x}{\\ln x}=\\text{li}\\left( x \\right)-\\text{li}\\left( 2 \\right)}\\\\ 其中, \\text{li}\\left( x \\right) 为「 对数积分函数 」( Logarithmic …

The Lisunov Li-2 was a transport aircraft that was used by the Soviet Union during World War II. Originally designated PS-84,[1] the Li-2 was a license built copy of the Douglas DC-3 transport …

The logarithmic integral function Li(x) (or just the “logarithmic integral”) is a locally summable function on the real line. This special function is used in physics and number theory, most …