表主动
发表于 2025-3-23 11:13:16
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服从
发表于 2025-3-23 14:56:16
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ineffectual
发表于 2025-3-23 21:01:15
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jagged
发表于 2025-3-23 22:55:05
Aki Koivula,Pekka Räsänen,Teo Keipiribing the motion of a vibrating spring. We discuss first and second order linear partial differential equations with one dependent variable and two independent variables. We introduce a classification for a linear second order partial differential equation with one dependent variable and only two i
Hippocampus
发表于 2025-3-24 05:53:26
Anqi Qu,Jiarui Liu,Zilai Pan,Yiwa He also pay attention to the initial conditions and the boundary conditions. Once the general solution is known and the initial conditions and boundary conditions are satisfied, we have the complete solution of a given problem. In usual problems, the initial and/or boundary conditions are given, and w
ORBIT
发表于 2025-3-24 09:59:35
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半导体
发表于 2025-3-24 12:19:22
Sibel Crum,Belle Li,Xiaojing Kou resistance, Taylor series and the Frobenius method, Laurent series and residues, special functions, Hermite polynomials, Fourier-Bessel series and Fourier-Legendre series, Laplace transform and Fourier transform, Sturm-Liouville systems, Legendre polynomials, generalized Green’s function, linear pa
Glaci冰
发表于 2025-3-24 17:50:46
Analytical Methods in Applied Mathematics978-3-031-74794-6Series ISSN 0941-3502 Series E-ISSN 2197-8506
微尘
发表于 2025-3-24 21:09:31
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看法等
发表于 2025-3-25 00:42:50
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