solve Differential Equation : y"+4y=sin2x.

Recently I saw this question (http://www.mapleprimes.com/posts/141668-Partitions-Of-A-Natural-Number-Into-Factors). I want to find the divisors of a number, say 120, :

2,4,6,8,10,12,15,20,24,30,40,60,120

for the students but couldn't find a simple way for that expect the solutions in above link. Isn't an easier way to do this job in Maple?

Thanks so for the time

proc.mw

why doesn't this evaluate to a numerical value when u supply an a value for 'a'.

can someone modify it......

I've plotted the solution to a GLM using the plot3d function, but a portion of the plot is irrelevant to the presentation of the results. I can define the portion of the plot I want to discard based on the x and y coordinates, but I've gotten errors for every if-then statement I've tried to include. Any suggestions on how to properly integrate an if-then statement into the syntax?

Aslam-u-Alikum... How are you? Hope you will be fine. I want to determine the eigenvalues of differential equation in Maple kindly help me... Problem.docx

restart; 

g := proc (i) 
if i = 1 then a else 0 fi
end proc:

h := sum(g(i), i = 1 .. f);

The result is h:=0 instead of h:=a. What's wrong?

A number n is called a double if its base-7 digits form the base-10 number 2n. For example, 51 is 102 in base 7. What is the largest double?

Hi, I want to print     t[n] / (-1)^n * sum   as following, but I don't know where the error is. Please help me.

Thank you very much.

i interpolate a function in some knots by BSplineCurve, the resulting function is parametric.

how i can convert this parametric function to a function?

thanks.

MapleSim already developed a Template for Linearization.

The code behind "Linearize" button in the Linearization template is as follows:

"MapleSim:-Templates:-Linearization:-Linearize();"

The results, namely A,B,C,D matrices in the state-space presentation, are shown in the text area "mcEqs".

How can I save these matrices to some variables for further analysis?

In addition, without the linearization template, 

How would one go about making a table of variable values for a multivariable equation? By that I mean, lets say you have the equation x-3y+z=5. It can easily be plotted as a plane but what if I wanted to produce a list of key values so I could make a graph myself? Similar to how the TI's can make a table for single variable equations. I ask because I am tasked with making a pencil and paper graph and it would be nice if I had a table that were say, incremented by x=1. Is there...

Hello guys. i have  a little bit of problem I used the GenerateMatrix package to generate the coeff. matrix A and the Constant Matrix b. Then I executed a LinearSolve on both in a loop that will run N-times. At each run, Matrix A stays unchanged while Matrix B changes because of the re-initialisation of the variables therein. Variables (y[0] and z[0]). Matrix B is in variables y[0], z[0] and h which is constant throught the entire loop. My problem is how to keep the constant...

Hello,

I am in need of a command that given a positive integer n (length of tuple), and a bound b, the output is a list of all n tuples with elements ranging from 0 to b. The command is analogous to "Tuples" in Mathematica:

http://reference.wolfram.com/mathematica/ref/Tuples.html

Thank you for the help!

I'm given this equation:

and I have to find the decimall value of 

How do you program this in Maple?