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Francesco Mela


自 2016 起处于活动状态

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统计学

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Contur plot from data
Hi, I have a big set of data which are in 3 vectors X, Y, Z. Each term of these vector represents the cartesian coordinates of a...

7 years 前 | 1 个回答 | 0

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Change element in a vector
Hi, I want change the elements: 2 with 6 and 6 with 2 in the first column of a matrix A A=[1,2,4;2,3,5;6,4,6;2,5,6] with a...

7 years 前 | 2 个回答 | 0

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Simplify symbolic functions: remove terms
Hi I want to simplify a symbolic function in this way: this is my function: a*b+dx*dy+dx^2*dy+a*dx+a+dy*dz+dt*da I want...

8 years 前 | 2 个回答 | 0

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Solve PDE - elliptic equation
Hi, I have to solve this PDE: Uxx+Uxy+Uyy+sin(u)=12∗(x2+y2)+sin(x2+y2)Uxx+Uxy+Uyy+sin(u)=12∗(x2+y2)+sin(x2+y2) The domai...

8 years 前 | 0 个回答 | 0

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