Alexen, Please see ?DEtools[odeadvisor]. That will tell you what kind of ODE you have and give hints on how to solve it. Hope this helps, J. Tarr

There is a discussion at the moment on comp.soft-sys.math.maple about Maple's failure to obtain the correct limit of a sum. You might glean a few ideas from it. Good luck, J. Tarr

You could try converting the array to a Matrix and using plots[matrixplot]. Please see ?convert and ?plots[matrixplot]. Hope this helps, J. Tarr

Please see ?collect. For example, restart; e1 := X*(X^2+a*X+b)^2; e2 := expand(e1); collect(e2,X); Hope this helps, J. Tarr

Please see ?commandline and choose versions (commandline). Hope this helps. J. Tarr

Have you tried setting smaller margins in Word? This affects when word wrapping occurs, as does font size. You can check this by filling a line with one character and then using Tools>Wordcount. Then do the same with Maple using length and see the difference with Word. Hope this helps a bit, J. Tarr

David, You might like to check out ?worksheet,reference,addhelp and ?makehelp. I have used them in the past to create help files for packages. Good luck, J. Tarr

Yes, buy Maple 11. Regards, J. Tarr

dgiznya, The Maple Units packages are very good, but not all Maple commands work with them in the way that one might expect. You have highlighted one. Another is plot, because the ranges don't accept units. Personally, I use symbols throughout the calculation and only introduce units when assigning values to the symbols. That's not perfect because I have to remember to state the units on plot axes labels - something like this: restart; T := m*v^2/2; plot3d(T,m=0..5,v=-5..5, labels=["Mass(kg)","Vel(m/s)","KE(Joule)"], orientation=[-115,50],axes=normal); Hope this helps, J. Tarr

Thomas, Here's another way that you might prefer: print(X_bar[1] = `Mean SampleMeans1 `, S[1]^2 = `Var SampleMeans1 `, S[1] = `SD SampleMeans1`); Again you can insert more spaces around the names between the left quotes to suit your taste. I have used something similar in an array to produce a tabular output of a number of statistics. I can post it if you wish. Hope this helps. J. Tarr

If you don't object to an extra comma between the printed outputs, you could do this: print(X_bar[1] = Mean_SampleMeans1,` `,S[1]^2 = Var_SampleMeans1,` `, S[1] = SD_SampleMeans1); You can increase the spaces between outputs by increasing the number of spaces between the left quotes. Hope this is of some use. J. Tarr

Try this: restart; Delta_x := x*y^2*z^3; Does this do what you want? J. Tarr

You could also add the inequation to your system of equations like this: restart; sys := {a_1^2*alpha+a_2^2*beta=a_1, 2*a_1*a_2*alpha+a_2^2*gamma=a_2, a_1*b_1*alpha+a_2*b_2*beta=b_1, a_1*b_2*alpha+a_2*b_1*alpha+a_2*b_2*gamma=b_2, b_1^2*alpha+b_2^2*beta=a_1+b_1, 2*b_1*b_2*alpha+b_2^2*gamma=a_2+b_2, (a_1*b_2-b_1*a_2)<>0}: vars := {a_1,a_2,b_1,b_2}; sols := solve(sys,vars); Hope this helps. J. Tarr

Please see ?solve,details and ?allvalues. Hope this helps. J. Tarr

Todd, Welcome to Maple, but be ready for a lot of learning! You could do this for your example: restart; with(DEtools): desgn := diff(y(x),x)=-x/y(x); vars := y(x); DEplot(desgn, vars, x=-10..10, y=-10..10,arrows='MEDIUM'); Notice that I changed your differential equation very slightly, and used only two .. to denote a range. Maple can be quite picky about little things. Hope this helps and good luck with Maple. J. Tarr