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 Author Comment/Response Lyna 06/04/12 05:12am Hello All, i have two differentical equation with a variable parameter "p" y''[t] == (1/(p*p))*x[t], x'[t] == -y'[t] - x[t] + 10, i defined event with "event locator method" in the ndsolve of differential equation. i defined function to have the step for the variation of the parameter "zt". zt is a variable step (not constant) I solved equations from event to event in a time interval, but my problem is how to plot all the variation of the parameter "p" at each event. i have defined a table that contains all possible value of "p" with the step zt p=Table[i,{i,1,1.3,zt}] and then try to solve equation from event to event with variation at each one. tf = 0; ss = Reap[ While[tf < 10, Sow[sol[p, tf]]]][[2, 1] i am not sur that is the best solution or i should use a table of tables or a liste that each element is a list of elements any suggestion Regards Attachment: one way.nb, URL: ,
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