So I'd like to take two ranges of numbers and simlify their combination.  Example:  RealRange(2,5) union RealRange(3,6) should yield RealRange(2,6), but the union function doesn't accept RealRange data types as its argument.   Is there an available command that will produce the desired result?

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