Dear All, I'm trying to substitute a series ansatz into a coupled couple of equations to find coefficients. The equations are quite cumbersome, but the principle shouldn't be too difficult. The equations are f3A(alpha,mu,Omega,delta,m) =0 f4A(alpha,mu,Omega,m) = 0 where f3A and f4A are complicated functions of the several variables. The region I'm working in is delta=0, m=1 Now, I have reason to believe that the following ansatz will work: alpha = A0 + A2/Omega^2 + A4/Omega^4 +.... -mu=M0 + M2/Omega^2 + M4/Omega^4 +.....

I recently upgraded to Maple 12 from Maple 11 and it seems that I have lost the ability to browse the contents of a matrix.  In Maple 11 I was able to right-click on the matrix block and use the context menu to open a tabular view of the data.  In Maple 12 I get a context menu with "Explore" as an option but it yeilds a dialog having a single button in it which also reads "Explore."   Clicking this closes the dialog.

Does Maple 12 have any capability for quickly browsing the contents of a Matrix?

I want to convert the following into cartesion:

diff(r(t), t) = sin(Pi*r(t)), diff(theta(t), t) = 1

And then plot the phase portrait.

Could someone help me with this?

i do:

int(ln(k3+r)/r^2,r);

i get:

either 1/k3*ln(r)-ln(k3+r)*(k3+r)/k3/r

or 1/k3*ln(-r)-ln(k3+r)*(k3+r)/k3/r

the expected behaviour would be to always get the absolute value inside the ln

I'm looking for the greatest integer function in Maple.  I.e., [x] is the greatest integer < = x.  What does Maple call it?  What is the syntax?

Alla

The omexample.c file for calling Maple from C has no make file.

The READEME.txt file in the directory containing omexample.c suggests: "Refer to ?OpenMaple,Examples"

The result of  "?OpenMaple,Examples" does not seem to explicitly specify the required magic to make things work...  Following what appears to be intimated, I typed (to bash):

export MAPLE=/home/dpaddy/bin/maple12

export LD_LIBRARY_PATH=$MAPLE/bin.X86_64_LINUX

In plotting two functions on the same plot, is it possible to specify two domains, one for each function?

Alla

For the commands  Digits:=20;  identify(evalf(k/Pi^4));

I get the closed form result with k=105 but not with k=104 or k=106.  I have tried to understand this behavior from looking at the identify help page but haven't figured it out.

Hi all

I'm using the SOLVE (Maple11) function to solve inequalities: solve({f_1(x,y,z)=0, f_2(x,y,z)>=0, f_2(x,y,z)<=1, f_3(x,y,z)>=0, f_3(x,y,z)<=1}, z);

Thus, I have 3 equations with 3 variables (x,y,z) and I have 5 constraints (4 inequalities and 1 equality).

Maple gives me the following result:

A piecewise function where the components are a plane equation in regarding the 5 constraints and no solution otherwise. (See the picture)

The command collect( u*(u[t]+1), [u, u[t]], distributed); is not giving me the expected result u+u[t]*u but the error message Error, (in collect/series) invalid expression for series

I'm using Maple V R4 for OS/2 (the last version available for OS/2), and have two software questions:

- How do I change the font used in the math expression bar?
In the present font, which is fixed width, the parentheses
and bracket symbols, () and [], are almost indistinguish-
able. I'd like to use another fixed-width font that does
not have this problem.

- There seems to be a limit to the number of characters that
the expression bar will hold, limiting the size of the ex-
pression appearing in a text setting. Is there a way to
increase this limit?

Thanks.

After reading help file on product command (Maple 12), I put in the command product(1+1/ithprime(k)^4, k=1..infinity); expecting to see the symbolic result 105/pi^4.  Instead I got back the product unevaluated.  Have I misunderstood what the product command is supposed to do?

Hi everybody

 

Hi everybody

 

p.276 from the advanced programming guide: example 2 line 11

> r := z = -3 .. 3;

                              r := z = -3 .. 3
> minz:=lhs('if'(r::range,r,rhs(r)));

Error, unable to match delimiters

I encounter a similar  problem of parsing once: