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 Mar12 comment System of two differential equations where all characteristic roots are complex conjugate so, as I understood, firstly I should insert this first solution into homogenous system and determine first pair of constants c1 and c2, then I should insert second solution and determine c3 and c4. Finally when I will obtain c1,c2, c3, c4... c8, what will be the function y1(x) and what y2(x) in the last step? Mar11 comment System of two differential equations where all characteristic roots are complex conjugate how many constants? just present us the solution for each function Mar11 comment System of two differential equations where all characteristic roots are complex conjugate Can You give me some instructions in detail or just start point that I can continue Mar11 asked System of two differential equations where all characteristic roots are complex conjugate Jul17 comment Polar Decomposition for Symplectic Matrices @ YACP As I can see, this problem with symplectic matrix is just transformation to polar, I have one more condition, how can I use this your answer and apply on mine problem math.stackexchange.com/questions/444304/… Jul15 asked How to find a symplectic matrix that satisfies an additional condition Mar16 comment Three-Body problem - Newtonian space @ Anil I am not sure what you mean. Mar15 revised Three-Body problem - Newtonian space deleted 137 characters in body Mar15 comment Three-Body problem - Newtonian space @Jyrki thank you very much for your attention, but can you help me how to simulate three body problem? Mar15 asked Three-Body problem - Newtonian space Feb3 awarded Tumbleweed Jan27 revised Neglecting solutions and reforming the system of differential equations with reducing the order but to keep choosen solutions edited body Jan27 asked Neglecting solutions and reforming the system of differential equations with reducing the order but to keep choosen solutions Dec8 comment How to change Hermite function to have a same shape with moving extremum point and zeros I didn't explain good, also the boundary conditions in -1 and 1 must be the same (my don't good explanation with "to have same shape"). Please, take a look up. I putted an example, but I don't want to connect two functions, I need just one. Dec8 revised How to change Hermite function to have a same shape with moving extremum point and zeros added 733 characters in body Dec7 revised How to change Hermite function to have a same shape with moving extremum point and zeros edited title Dec7 awarded Student Dec7 revised How to change Hermite function to have a same shape with moving extremum point and zeros added 50 characters in body Dec7 revised How to change Hermite function to have a same shape with moving extremum point and zeros added 180 characters in body; edited title Dec7 asked How to change Hermite function to have a same shape with moving extremum point and zeros