I've got a system of ODEs I need to solve for dependant variables phi(t) and a(t) with independant variable t.(appologies, it's a bit messy; the maple tag isn't making things render nicely)

dsys := {(D(D(phi)))(t)+3*a(t)*(D(phi))(t)/(D(a))(t)+dOm(phi(t), a(t)) = 0, a(1000) = sqrt(2*sqrt((8*Pi^3*(1/45))*To)*1000), phi(1000) = 12*M^(alpha+4)*alpha*g^2*sqrt(8*Pi^3*(1/45))*To^((1/2)*alpha-1)*10^(1/(alpha+2)), (D(a))(t) = sqrt(RhoDE(phi(t), a(t))+RhoM(a(t))+RhoR(a(t)))*a(t...

I'm trying to find out whether or not Maple V R5 can plot a polynomial with a specified area under the curve shaded.

Any other "old timers" here?

Cheers,

 ~ Mark Morse (Tutor), Seattle Central Community College

so i need to check that these solutions are in fact solutions. they are obviously very close but i can't get the boolean output to be "true".

eqn1:=tan(x)=x;
N:=10;
soln_array:=Array(1..N):
for m from 1 to N do
this_soln:=fsolve( eqn1 , x=(m-1/2)*Pi..(m+1/2)*Pi );
soln_array[m]:=[this_soln, tan(this_soln)];
end do:
soln_array;
for m from 1 to N do
this_soln:=fsolve( eqn1 , x=(m-1/2)*Pi..(m+1/2)*Pi );
evalb(simplify(tan(this_soln)-this_soln)=0);
end do;

I was playing around with loops and came up with this simple while loop that is reacting different than I am expecting

a:=rand(1..10):
while a() <> 4 do print(a()); od:

the output includes 4's ??

I'm new here so apologies if the solution to this is is obvious.

I am getting the following message in Maplesim 3 when I try and run a simulation. At least I think it is an error message, could just be a statement?

Starting simulation...
Preparing model...
(in MapleSim:-Modelica:-Flatten) duplicate definition of `Main.Turbo.C`
 

Any tips on what this might mean would be appreciated as it means nothing to me...

I'm trying to pointplot two arrays (vectors) but no matter what I change in the listing below Maple 11 keeps considering the second vector as an option.

Hi, continuing on from my previous question. The question now is that how many times do I need to roll the dice to have at least 1 one, 2 twos, 3 threes, 4 fours, 5 fives, and 6 sixes.

Thanks for all the help!

Can Maple embed ActiveX objects ?

such as discussed here www.quaccess.com/index.html

I want to plot y=f(x) where f(x) may be in the form: f(x) = kx... I need to supply several values, or parameters, for the constant k. For example, k=2,4,8,10. If I can get someone's help on this plotting question, I think I'll be on my way to figuring out other issues using the Mable Help menus. I'm a self-study student, so I don't have a professor to check with. Thx. (I realize this is extremely simple)

In principle I think this should be pretty easy. I need to make a MAPLE code that uses loops and arrays to carry out the prcedure described here: http://people.revoledu.com/kardi/tutorial/ContinuedFraction/Decimal-Fraction-Conversion.htm  

I've compared that with the Math Input Panel associated with Windows 7 just by mouse

,and another software made by my handwriting pen's manufacturer.

What's your point?

Wish a great progress in the following version of Maple,I think the Ocr function can also be associated.

Hi

I lunch a .mpl maple program in a bash shell.

Between the other things, the program shoud print in a file a line that gives the user informations about the elapsed time

I've put inthe code this line

appendto("./out.txt"):
printf("\n The total elapsed time has been of %d hour(s)  %d minute(s) and %a seconds \n",hou, mini,seci):

the problem is that the out file contains not only the formatted answer, but also the very call: