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No graphs after plot command
Hello everybody; I have a question about plot command. When i run the script, there is no error message but empty figure has ...
10 years 前 | 1 个回答 | 0
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ODE solvers initial value problem
Hello; I have a function id/dt c(n)=-(c(n+1)+c(n-1))-c(n)^3 where c(n+1)=c(1) c(0)=1/n Is there any code like Ndsolve? ...
10 years 前 | 0 个回答 | 0
0
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discrete equation which has initial value with periodic boundary condition(please help)
hello i have a equation i (dc/dt) = -(cn+1 +cn-1)+ lcnl^2 cn (n subtitle) if i divide it into 200 part c201=c1 initial va...
10 years 前 | 0 个回答 | 0
0
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periodic boundary conditions in matrix
Hi everyone, i want to ask about a question n*n matrix like Q[A C 0 0 0 0 0....C ; C A C 0 0 0 0....0 ; 0 C A C 0 0 0.....
10 years 前 | 0 个回答 | 0