How do I make odeplot scale the Y axis from 0?

For reasons I do not understand it has started to scale from the minimum value.

My current expression is

odeplot(dsol,[sSX_(u),sSY_(u)],0..(0.9), title = "Postion",
legend=[position],axes=FRAME,scaling=constrained );

Thank you in advance

I have an expression of the form diff(var_name(t),t)= -K + procedure_name(var_name(t)) where K is a constant. The procedure is a boolean function. the var_name(t) is not recognised as a numerical value in the procedure and an error is reported. Any suggestions greatly recieved. The actual procedure is shown below. > restart: > m:=1: > P:=10: > RLLS:=proc(vt) > local max,v,N,k,feq,mu,lambda; > max:=.01: > v:=vt: > N:=9.807: > k:=.0001: > feq:=10: > mu:=2: > if abs(feq/mu*N)

I wish to extract the coefficients associated with a particular variable. I have assigned the results of a symbolic solve of a system of equations (sol) using assign(sol): One of the assigned variables in (sol) is ROLL and the symbolic solution is of the form ROLL; 200*a*b^2*VAR1 + 3000*b*VAR2 + 1500*cos(c)*d*VAR1 . . . (the actual expression is hundreds of line long and each VAR is randomly distributed in the expression) How do I isolate the coefficients associated with a specific VAR eg for VAR1 I want to be able to make the assignment coefVAR1:=(200*a*b^2)+(1500*cos(c)*d)