Question 1. After googled, x*diff(F,t)+t*diff(F,x) for two variables, how about three variables or general ?

Question 2.

if deal with on variables case using the example in

http://demonstrations.wolfram.com/AFunctionInvariantUnderAGroupOfTransformations/

F := (x^2-x+1)^3/((x^2)*(x-1)^2)-y;
G:=y*diff(F,x)=0;
sol:=solve(G,y);

F(H)-F = 0
sol:=solve(F,x);
H := simplify(subs(y=F, sol[1]));

all above code can...

maplehelprequired.mw

Hi all,

I am trying to solve the equation for values k=1 to 10,  but the issue is when I put k=1 equation goes to infinity.  I am attaching Maple file for your kind consideration.  I have also included an example which may help you to answer.  I couldn't understood how its done.

Best Regards

A.Q

Hello! I am running the same piece of maple code on different machines, and I have noticed that the powerset function returns the sets in a different order. For example,

Maple 11 (X86 64 LINUX)

> powerset(3);
            {{}, {1, 2, 3}, {2, 3}, {3}, {1, 3}, {1}, {2}, {1, 2}}

Maple 14

> powerset(3);
            {{}, {1}, {2},...

Hello Maple experts,

 I want to find out k-th probability (denoted by c(k)) which is expressed as an integration of summation for values ranging from j=0 to k. The function is very complicated , I have attached the PDF for expressing the mathematical term properly.

I am able to find out the c(k) for a given value of k, if k is specified in the beginning of the maple program. But I am unable to make it generic form of k.

I have also attached the...

mapleprimesifconditi.mw

Hi all,

I am stuck in defining two conditions for the equation.  I am attaching Maple file for your kind consideration.

Actually I want to assign the value of k=1, and when k is not =1, for G11(k).

I shall be very thankful for your kind replies.

Best Regards

A.Q

hi

consider the following ode

eq1:=diff(f(x),x$3)+f(x)*diff(f(x),x$2)+diff(f(x),x$1)^2;

subject to thease boundary condition

f(a)=0,D(f)(b)=0,D(D(f))(0)=0

where

b= infinity (in computational domain b=10 is acceptable )

the exact solution of ode is

f(x)=tanh(x/2)

but when i want to solve it with Dsolve, maple get the zero. how can i use this ode in maple

thanks

I am a transplant from to Mathematica to Maple and still getting used to things. Could somebody please help me finding the maximum of f with repect to the constraints and with the variables below. I keep getting  syntax error, no matter how many times I check the documentation page. Thank you very much

f:=1/((4 a - 3 M) (-4 b + 3 M)) (-9 M^3 - 16 a b x +
    12 a M x + 12 M^2 x + 16 b x^2 - 12 M x^2 + 12 b M y +
    12 M^2 y - 16 b x y - 16 M x y - 12 M y^2 + 16 x y^2)...

hi dear

what is this error and how i can fix it?

Error, (in gcd/NoExpandDegreeCheck) inputs must be polynomials over all variables

i want to solve this pde

Is there a way to do a repitition statement with two indices?  Something along the lines of:

for i,j from 1 by 1 to N do a[i][j]:=Re(b[i][3][1][j]); end do; ?

I know that the syntax used here doesn't work, but is there a way to do this?

proc5.mw

How to implement the following operation in Maple, as in MATLAB:

A(~isprime(A)) = 0

A =      0     3     2    13 
           5     0    11     0     
           0     0    ...

I'm trying to construct some tickmarks. I have so far found a way to do a "hat", where I use:

conjugate(alpha)

I also need to put a subscript and a superscript on that. Any ideas?

Cheers,

Christian

finding involutivedivision, autoreduction, involutivebasis for polynomial system,

which library contains these functions

I've a 3d surface built by the point's set;

It looks like this:

The question is:

1. how to build a surface based on this data?

2. how to define whether the arbitrary point (x,y,z) is inside this surface or not?

If I have a MapleSim file that successfully runs and I want to manipulate the data and equations in Maple, how would I do that? I know how to link a MapleSim file to a Maple document, and how to pull out the system of reduced DAE's, ODE's, parameters, etc. My question is whether or not there's a simple way to have Maple solve those equations and be able to display the same type of data (graphs, export the numerical solution to the system to an Excel file, etc.) that...