id,summary,reporter,owner,description,type,status,milestone,component,version,severity,resolution,keywords,cc 10946,Add dt to system arguments,ilja.j.honkonen@…,karsten,"A popular algorithm for calculating the change in velocity of a charged particle in a magnetic field (1) requires the length of the time step while integrating (dx/dt := f(x,t,dt)) and cannot be used with odeint as far as I could tell so I suggest modifying the definition of system from sys( x , dxdt , t ) to sys( x , dxdt , t , dt ). Some enable_if magic should allow all existing code using the current API to work. (1) Equations 25 and 26 in (h)ttp://www.dtic.mil/dtic/tr/fulltext/u2/a023511.pdf",Feature Requests,assigned,To Be Determined,odeint,Boost 1.57.0,Problem,,,