Engineering, Differential Equations, Science Education, Mathematics Education.
in PolymathPlus: R' = 2*(R - R*F) F' = F*R - F # initial and boundary conditions R|4 F|2 t|0:10 Note that any text after the# sign is considered to be user comment and is ignored by the solution engine. Below you can find an alternative syntax, which is a bit more verbose, and is also supported by