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Gideon Idumah


Last seen: 7개월 전 |  2018년부터 활동

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Plotting a circle on top of a trisurf graph.
I have solved a finite element problem, and I am using trisurf to plot the result. However, I want to specify a circular patch c...

2년 초과 전 | 답변 수: 1 | 0

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Why does my ODE solver go slow when I specify the Jacobian
Hello, I have a code that uses ode15s to solve a stiff ode system. The RHS is of size 32. I realized that when I specify the J...

2년 초과 전 | 답변 수: 0 | 0

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How can I make my ODE system run faster
options = odeset('mass',BigM,'MassSingular','no','BDF','on','MaxOrder',2,'Jacobian',... @(t,u) MyJacobian(t,u,MM_params, R...

2년 초과 전 | 답변 수: 1 | 0

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How to randomly choose 5% of a matrix to be of value 1.
I have a 256 x 256 matrix which has value 1 inside a small square 20 x 20 around the center, and zero elsewhere. I need to rando...

대략 5년 전 | 답변 수: 1 | 0

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How to terminate an if-elseif-else statement once a condition is met.
I want a situation whereby if the first 'if' statement is true (norm_sn <= del), the code should calculate x_plus and exit the i...

5년 초과 전 | 답변 수: 1 | 0

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