Ok, another of my "how do you do this" questions: In solving a an equations such as: y''-4*y'+5*y = 0 I would like to show the roots; is there a function that will just pull the roots from the equation as written or do I have to write the equation like: m^2 + 4*m + 5 = 0 and use: solve(m^2+4*m+5); Thanks...

Is there a way to redefine the way constants are displayed? I would like to have ODE results displayed with C1, C2... with 1,2 as a subscript? Thanks for any help you can offer.

> restart; with(DEtools); with(PDETools, declare); declare(diff(y(x), x), prime = x); [declare] y(x) will now be displayed as y derivatives with respect to x of functions of one variable will now be displayed with ' > dsolve(diff(y(x), x) = -(2*x-1)/(3*y(x)+7)); (1/2) 7 1 / 2 \ y(x) = - - + - \49 - 6 x + 6 x - 6 _C1/ , 3 3 (1/2)

I'm new to Maple and just starting a ODE class. I attempted to do a Directional Field plot using DEplot. The plot displayed only Q3 and no mater what I tried would not plot the other quadrants. My inputs: with(DEtools): desgn := diff(y(x),x)=-x/y DEplot(desgn,y(x),x=-10…10,y=-10…10); Seems simple enough is there something I’m missing? I tried to change the range by the right click over the plot; did nothing. Sorry if this is overly simple but, I’m still learning… Thanks for any help anyone can offer.