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fredo ferdian


自 2016 起处于活动状态

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统计学

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Evaluating Principal Value Integral
Dear All, I have a problem to do numerical integration of improper integral. I need to calculate the principal value of integ...

7 years 前 | 1 个回答 | 1

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double integral with singular point (not detected by integral2)
Hi all, I would like to evaluate double integral of some function which contain one singular point at the origin. I must admi...

7 years 前 | 1 个回答 | 0

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Defining normal unit vector for arbitrary plane surface in 3D space
Dear All, I'm trying to find unit vector which pointing perpendicularly outward from arbitrary shape of panel in 3D space. I ...

7 years 前 | 2 个回答 | 0

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Operation between Cells-constant-vector-matrix (4D-problem), cell indexing/storing.
Hello, I try to do some calculation about 4-D problem, calculating parameter which the value will be different for every coord...

8 years 前 | 0 个回答 | 0

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Nonlinear 3 equations 3 unknowns , hyperbolic, fsolve stopped because the last step was ineffective
I have 3 equations and 3 unknowns (x(1), x(2), and x(3)) which expressed in my objective function below: function F2=F2(x) ...

8 years 前 | 1 个回答 | 0

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