At t=0 in a tank is a solution with Volume V_0 and concentration c_0. There is a constant input of a solution with concentration c_i and a constant output.

You can see the the function A(t) which describes the amount of the substance in the tank at t and the function V(t) which gives the volume of the solution in the tank at t. You can change the parameters of the problem and the time t.[br]Check the different behaviour in the cases input<output, input=output and input>output.