I have managed to download data for Nasdaq, NYSE and Amex in Maple. However,
my problem is how do I store the data in a txt file on my desktop in the most optimal way.
I want an mpl file so I can schedul the task manager to run the file each day in the background.
This is as far as I have come:

restart:
with(StringTools):
with(LinearAlgebra):

CSV := proc (Url) local theDLL, URLDownloadToFile, myDirectory, myFile, Destination, DL;

theDLL...

how can i plot the graph of this equation.

V[q](r,θ) = 1/r - 1/(r^2*sin(θ)^2)

considering 0‹θ‹pi and q=1.

Hello

    IS THERE ANY MAPLE CODE FOR SOLVING SYSTEMS OF ODEs using IMPLICIT RUNGE KUTTA SUCH AS LOBATTOIIIA,LOBATTOIIIB and LOBATTOIIIC.THANKS

I have a polynomial system that I'd like to find ONE solution of (there may be many, so I want the program to terminate after 1 is found, since I only need to know that there IS a solution). In this system, the unknown variables are a_i, b_i, c_i, d_i, s_i, t_i, r_i, l_i, for i = 1, 2, 3, 4. Thus I want the solution in terms of these variables. The system is given below.

\begin{align*}
q & = \sum_{i = 1}^4 a_i s_i, \\
w & = \sum_{i = 1}^4 a_i t_i, \\

Hey,

I'm on Maple 16 and looking for some help.

Basically I have a function Psi(x) and I want the function x(Psi).

Here how i define Psi(x) :

psi:=x->(ln(x)-x+k*(1-x)^2+(V*G)/(R*T)*((1-x)^(1/3)-(1-x)/2))*(R*T/V);

The constants R,V,G,T,k are well defined (physicist here).

And then if I try

solve(psi(x)=y,x);

It gives me no solutions with the warning "Warning, solutions may have been lost".

Whereas if I fsolve it for a certain y :

ROOT1.mw

Hallo Guys,

This questions was asked 7 years ago and I hope now there is some knowldege how to do it ( else Maple sucks that in 7 years they havent figured out it yet ) ...

So basically How do you change the inline plot size window in the worksheet itself by command line ( For Noobs please do not show off your "Skills" by saying that you can do it b Mouse : I know that much else wont be here :P  and those who want to tell me how to do it in a jpeg/etc also Shut up ! ...

Before I brought up my question here, I had asked it [here](http://stackoverflow.com/q/16852062/1842737). Thanks for your hint and the time.

Hello,

I am trying to obtain an inverse of a symbolical 4 by 4 matrix in order to diagonalize it. I have noticed that the command 'Inverse' seems to find a matrix inverse almost instantaneously, whereas the Matrix Inverse command from the Linear Algebra package takes far longer - on the order of hours. Can anyone explain the difference between them? It seems like 'Inverse' is roughly speaking, an approximation to 'Matrix Inverse', however I have not been able to find...

I'm using Maple to come up with equations, and then I'm substituting in variable names for functions which I can then output to Matlab.

I haven't had any problems until I ran into partial derivates described by the D[] operator.  For example, if i have a function f described by f(x(t),y(t)) and I differentiate it wrt t, I get 

D[1](f)(x(t),y(t))*(x(t)_dot) + D[2](f)(x(t),y(t))*(y(t)_dot)

I want to make a substitution for D[1](f)(x(t),y(t)) and D[2...

Hi,

     I have a a matrix with one symbol and all others are numbers. I got this from doing 

   M := (1-x)*N + x*A :

 So my parameter is x, and N, A are numeric (real, symmetric) matricies. I want to plot the eigenvalues as x=0..1, but for a large matrix, say 25x25. Eigenvalues(M) only returns 17 eigenvalues, and more so, it doesnt keep them in the same order when plotting!

My issue is when Maple computes the...

Hello, I am trying to solve the following BVP,

Eq1 := -mu0*M*(diff(theta(eta), eta))*exp(-M*theta(eta))*abs(diff(f(eta), eta))^m*(diff(f(eta), eta))

+mu0*exp(-M*theta(eta))*(m+1)*abs(diff(f(eta), eta))^m*(diff(f(eta), eta, eta))+theta(eta) = 0;

Eq2 := G*(diff(theta(eta), eta, eta))+mu0*exp(-M*theta(eta))*abs(diff(f(eta), eta))^(m+2) = 0;

bc := f(-1) = 0, f(1) = 0, theta(-1) =0.5, theta(1) = -0.5;

m:=-0.3 (or 0.3) :M:=1:mu0:=0.5:G:=3:

I want to solve the following equation

1+{(25.*phi^3-297.*phi^2+1162.*phi-1500.))*(840.+332.*theta+29.*theta^2)/((phi^4-16.*phi^3+89.*phi^2-201.*phi+150.)*(3.+theta)*(28.+11.*theta+theta^2))}

in terms of theta.

i.e theta=[f(phi)].

The equation 

solve(surd(-2*x+4,3)+surd(x+2,3)+surd(x -6> ,3)=0);

has three different integer solutions.

I want to choose the integer number a, b, c, d, e, f to the equation 

(a*x + b)^(1/3) + (c*x + d)^(1/3) + (e*x + f)^(1/3) =0 

has three different integer solutions.

I tried

restart:

L:=[]:

for a from -10 to -1  do