Problem Statement: In a catalytic reaction that follows a mechanism known as the Michaelis-Menten kinetics, the reactant (S) combines reversibly with a catalyst (E) to form a complex (ES) with a forward and reverse rate constant of k₁ and k_i, respectively. The complex then dissociates into product (P) with a reaction rate constant of k₂ and the catalyst is regenerated.

I would like to accesse the value of a slider in a Maplet, and use it in a computation in a procedure.

My problem is that using Get(Slider1) does not give me a real number to work with. What kind of object is the value of Slider1, and how do I convert it into a real number?

i am trying to solve a set of 12 nonlinear equations using maple but the fsolve command if returning the command text as output.

can any one please help?

 

Hi,

I have a question about integrating an analytic solution to a differential equation in Maple. I have solved a system of 3 odes:
sol := dsolve({initial, syst}, func, numeric)
where
syst := diff(OmegaLambda(x), x) = ode1, diff(OmegaK(x), x) = ode2, diff(lnH(x), x) = ode3.

This then gives me analytic solutions as a function of x to the 3 odes and I can plot, say the third solution, by defining
lnH2 := x-> rhs(op(4, sol(x)))
and plotting lnH2.

Hi all,

This is probably a rookie mistake, but my Maple code is not outputting as I'd expect. E is a list of eigenvectors, s is a list of sets containing coordinates and n is the number of vectors in the list - my code should loop through the elements, and determine the type of stationary point. However, the print function seems to be causing unneccessary trouble.

I'm trying to write a code to find out how many strings of 3 or more same numbers appear in the first 10000 digits of pi. This is what I wrote but I know it's very very inneficient, although it does seem to work I think...

A := NULL:
a := NULL:
for k from 0 to 9997 do
a := [floor(evalf[10000]((10^k)*Pi)) mod 10,
floor(evalf[10000]((10^(k+1))*Pi)) mod 10,
floor(evalf[10000]((10^(k+2))*Pi)) mod 10]:
if a[1]=a[2] and a[1]=a[3] then
A := A+1:
k := k+3
end if:
end do:
A;

 

I am looking for help with basic algorithms to approximate numerical solution to the N body problem. I have been trying to develop basic algorithms using Runge Kutta, Euler ect. Initially I specified to the 3 body case and the equations of motion. I am now trying to develop a more general algorithm. If anyone has knowledge in this are or can look through my annotated procedure to see where I have gone wrong I would appreciate it. I am very new to maple and would appreciate detailed exposition, "for dummy's", if you will. Thanks in advance

Maple should do this

1e123456789876 + 1e123456789876

                           float(infinity)

The answer is 2e123456789876.

Is there a way to get maple to actually do the calculation without doing any manipulation of the numbers before hand?  Maybe there is a package out there for working with extremely large numbers?

How do I do to draw a graph from an adjacency matrix? Notice: the matrix is symmetric and when I use GraphTheory package, occurs the error: "Error, (in GraphTheory:-Graph) an undirected graph cannot contain loops (loop detected at vertex 1)".

I've tried the "graphplot3d" command, but I need to know the in-degrees of each vertex (it´s a rotine). It's impossible, in this case, using the "InDegree" command.

Help me, please! Regards,
 

> PDE := diff(u(x, t), t) = k*(diff(u(x, t), x))+diff(u(x, t), x, x); > a := 1/70; > IBC := {u(0, t) = 0, u(5, t) = 0, u(x, 0) = exp(-(x-2.5)^2/(2*a^2))/((2*Pi)^(1/2)*a)}; > pds := pdsolve(PDE, IBC, numeric, time = t, range = 0 .. 5, timestep = 1/2000, spacestep = 1/2000); >R := pds:-value(output = listprocedure); >uu := subs(R, u(x, t))

Hi,all, here is my question: alias(alpha=RootOf(x^32+x^26+x^19+x^15+x^13+x^11+x^9+x^8+x^4+x+1)); and then i want to compute: alpha^12345678987654321; But when I did it in maple, it failed. I think there should be some way to do it. Would you like to help me? Thanks Gepo

Is there a problem (strange) with the new algolib, or maybe an existing problem elsewhere that shows up when algolib is present? Is it only under MacOS, or more general?

The new version of algolib has been out about 2 weeks now. It is here... http://algo.inria.fr/libraries/

I downloaded files algolib.mla and algolib.hdb, but them in a directory "/Applications/Maple/algolib". It seems to work fine. But today I had a strange problem with latex(), and...

Hello,

I am wrting my thesis which is on some MapleSim models. In Ref I introduce MapleSim, I wanna know if MapleSim has Document Object Identifier (DOI) number or name that I can refer to.

Thanks so much,

Bye

I checked some formulas and realized, that my Maple version simply has no representation for some Greek symbols e.g. delta or epsilon, though it can print alpha, beta, gamma, xi omega. So if I type 'delta*alpha', Maple just prints 'alpha' though it calculates 'delta*alpha'.

Does anyone of you have any idea why this is the case, or even better, how I can change that?

Btw.: My version is 'Maple 12.0'.

Thanks.

Hi there!

Suppose I have an expression

Expr:=a*f(x[0],...) + b*f(x[1],...) + c*f(x[2],...),  

where the ellipses represent (different) functions of x[0]..x[2]. I'd like to use frontend to get the coefficients a, b, c corresponding to x[0], x[1] and x[2]. If the function f only has one argument, that's peanuts: