Hey
I have just started with maple and I it is a little bit confusing for me  an I am tryin to implement the sieve of eratosthenes algorithm

but I am still getting strang warnings and the programm does not function as wanted so i wanted to use the debugger but
it is not working(it is like disabled)
I have maple 12
I will be glad to get a help
thanks 

Hi,

A while back, I was trying to use Maple's NonlinearFit function, but I kept getting an error regarding the input.  Any help you might be able to give me would be appreciated.  Thanks much.

Hey there,

So I'm trying to throw into Maple for analysis the Cauchy problem:

g := piecewise((t, y) <> (0, 0), 4*t^3*y/(t^4+y^2), (t, y) = (0, 0), 0)

y(0)=0.

Is this possible? I'm investigating Uniqueness/existence on it (even though I know the solution already, given that it's Bernoulli in dt/dy with general solution: y(t)=c^2-sqrt(t^4+c^4)  , c is an element of the reals.

I've done some googling and looking around...

assignment_3_with_er.docx

I typed this file above exactly as my professor gave us but, I received this message, and the link to the website has no help for this.  Can someone help his or my resolve my mistake?

Hello to all,

I have a chunk of letters, numbers and others symbols like in this extract:

.....XRIH*zAv/(z*Bf3)+3*AkQ4xBpTbCYJVq6qCRRUYJy1aBvSjuQXp+zr6kmMEuNR+9*u9zugTalYwXJA*mBhaiM+8*WrkyyflSAs0JssjHLArZ+l5M1sWtcMznmkmu1+NmmSb7dsacr3qJkzQH*dE3yQlI0Ly2RGa1*Yr/ZlvZFCwCiQyVTQ2GflsnOBZTf05W4Ul35uZMHFxhy1tipPyK+iHfus/mJVhEeluq9vtVzEzwbPWav+w11/ii14f78yXqsqH+XU2m....

My goal is to be able to enter that chunk into Maple for character manipulation like searching if, for example, Qxp+zr6km is part of that chunk as is (and if possible his location).  Since there is some "+", I can't define it with chunk :=.  The source is a *.txt file.  Maybe a readdata?

I am quite busy for the moment so is there someone kind enough to help me.

Thanks in advance

Is there a name for offset correlated data? 

For example

a:=[1,2,3,4,5,6,7,8,9,8,7,6,5,4,3,2,1,2,3,4,5,6,7,8,9,8,7,6,5,4,3,2]:
b:=[5,6,7,8,9,8,7,6,5,4,3,2,1,2,3,4,5,6,7,8,9,8,7,6,5,4,3,2,1,2,3,4]:

Correlation(a,b)
                            0

However there exists a correlation of -1.000 only 4...

Dear Kamel Boughrara

Hi

I am grateful for your attention to my problem.

I have not the special boundary condition for phi[2](r,theta) and phi[4](r,theta) at this stage of process of solution. In fact, these functions are auxiliary functions to decouple high-coupled another PDEs.

 You tried to explain the stages of solution.  I ask for you to perform (write all requisite commands...

by trying to solve the following system of equations:

sys := {V[0]*(diff(P[0](t), t))/(k[B]*T0) = -z*C*A[1]*P[0](t)*(P[1](t)/P[0](t))^(1/gamma)*sqrt(2*gamma*(1-(P[1](t)/P[0](t))^((gamma-1)/gamma))/((gamma-1)*k[B]*T0*m0)), V[1]*(diff(P[1](t), t))/(k[B]*mu[T][1](t)) = z*C*A[1]*P[0](t)*(P[1](t)/P[0](t))^(1/gamma)*sqrt(2*gamma*(1-(P[1](t)/P[0](t))^((gamma-1)/gamma))/((gamma-1)*k[B]*T0*m0))-C*A[2]*P[1](t)*(P[2](t)/P[1](t))^(1/gamma)*sqrt(2*gamma*(1-(P[2](t)/P[1](t))^((gamma-1)/gamma))/((gamma-1)*k[B...

I am trying to calculate something but my computer(dual-core with 4GB memory) is too slow/old for it.

just copy and paste these into a new blank Worksheet Mode document and Edit->Execute->Worksheet and then post your result here. Thanks in advance!!!

G := [a[1]*(y[0]^2)-y[1]^2*a[1]-a[1]*(y[3]^2)+2*a[2]*y[0]*y[3]-2*a[3]*y[0]*y[2]-a[1]*(y[2]^2)+b[1]*y[0]+3*y[1]*(y[0]^2)+y[1]*b[0]-y[1]^3-y[1]*(y[2]^2)-y[1]*(y[3]^2)+c[1]+b[2]*y[3]-b[3]*y[2], -2*a[1...

Hey, I've been trying to calculate the mean from a set of measurements I took in an experiment. The measurements are (76.0,75.9,76.1,75.9,76.0,76.1,76.1,76.0,75.9,76.0,76.0,75.9,75.9,75.9,76.0,75.8,76.0,76.0,75.9,75.9,75.9,75.9,75.9,75.9,75.9,76.0,75.9,76.0,76.0,76.0), and I always do

y1:=(all of the measurements I just listed);

then I try to do the mean of y1

Mean(y1);

but everytime I try this an error comes up. 

Error, (in Statistics:-Mean...

Dear my friends

Hi

I have a linear partial differential equation to solve.

> equ1:=F5*(diff(phi[2](r, theta), r, r)+(diff(phi[2](r, theta), r))/r+(diff(phi[2](r, theta), theta, theta))/r^2)+F3*phi[4](r,theta) = 0;

where F5 and F3 is constant and phi[2](r,theta) is unknown function.

I tried to solve this equation by the following Maple's command:

> pdsolve(equ1,phi[2](r,theta));

When I type

cos(x), sin(x)

and start the Plot Builder (using the contextual menu) the first option it gives me is for a 2-D plot.  However, when I type

cos(x), x

and start the Plot Builder the first option is a 2-D polar plot and the "standard" 2-D plot is nowhere on the list.  Is this a known bug?  (I'm using Maple 15.01 on Windows 7.)

Thanks,

We have the following sequence of natural numbers 1, 4, 9, 13, 11, 27, 25, 37,.. . What is the next term?
Is it possible to find it with Maple? The approach
> with(gfun):
>l:=[1, 4, 9, 13, 11, 27]:
>rec:=listtorec(l,u(n));
fails because it produces a noninteger value of u(n) for some natural values of n.

Hello all,

I'm familiar with using _ and ^ to enter subscripts and superscripts in document mode. However, the only way I know of moving out of those modes is to use the arrow keys. I was wondering if there was an alternative shortcut that wouldn't require me to move my hands from the home row?

Thanks,

Amr

EDIT: I have figured it out (somewhat), so nevermind!

I wrote this in my AddSystem:

However for output that should be unitless, I still get units (which can be cancelled), like this: