Hi,

I need fsolve to round down its solutions but the 'Rounding" operator doesnt work . Here's a simple example

restart;
Digits:=5:
Rounding=-infinity:
fsolve(sin(x)=0, x=2..4);

The answer is 3.1416 but I need it to return 3.1415. There also doesnt seem to be a command to obtain the nth digit of a number, aka. digit(3, 3.14) = 4 in case I wanted to write a quick procedure to round down the answer.

Any suggestions?

Thanks,

i'm using DirectSearch package to solve the following system of equations (in order to find x1a,x1c,x2a,x2c):

How can i limit the solutions just for positive values of x1a,x2a,x1c,x2c? (Currently, I'm just using  

Thanks

Gil

Hi,

     So I'm trying to animate a ball moving around in a moving circle. I can do a sequence of points, and a sequence of static circles which works okay but I'd like a continuous animation. Here is the points where the ball hits the circle (x,y) position and the times (t).  and the animation of the circle

restart;
with(plots);

x1 := [.9, -0.6953537244e-1, .5084436548, .5084436548, -.5253004431, -.4186356935,
     -.8180728424, -.8180728424,...

How can I get the correct multiset power set of a hashmset in Maple? For example for the following hasmset s I have two different answers in Maple and MuPad. I need to compute MuPad like answer in Maple:

>s := hashmset:-new( [ a, 4 ], [ c,3 ] );
                  s := table(sparse, [a = 4, c = 3])

> combinat:-powerset(entries(s));

     ...

Hi, I use Maple 13 and have this issue to solve.

In an archive.txt there is the following Vector:

-1/64*cosdincl^2*cos(2*ele-2*g-2*anom-2*w)
+1/16*sinfJ*cosfK*sindincl*cos(2*ele+g-h+om-2*anom-2*w)
-1/16*sinfJ*sinfK*cosdincl*cos(2*ele-g-2*h+2*om-2*anom-2*w)
+1/16*sinfJ*cosfK*sindincl*cos(2*ele-g-h+om-2*anom-2*w)
-1/16*sinfJ*sinfK*cosdincl*cos(2*ele-g+2*h-2*om-2*anom-2*w)
+1/16*sinfJ*cosfK*sindincl*cos(2*ele-g+h-om-2*anom-2*w)
+1/128*cos(2*ele+2*g-2*h+2*om-2*anom-2*w)

Hello,

I work at a University and we use Maple 9.5, 13, and 16.  We have had problems with 13 and 16.  In this instance the program gets stuck at

for k from -N to N do
  e[k]:=g[k]/L2norm(g[k])
end do;

We left it run for 24 hours but it will not calculate e7. The program doesn't freeze but just seems to be in an endless loop. I have tried on multiple computers with different RAM/CPU configurations.

In Maple 9.5 this program...

http://wenku.baidu.com/view/7d013c8c680203d8ce2f24ee.html

 goal is to evalute to (5.10)

restart;
with(inttrans):
with(SumTools):
r := sqrt(2*p)*exp(p*t)/(i-1)!*Diff((t^(i-1))*exp(-2*p*t),t$(i-1));
L := laplace(r,t,s);
L := int(r*exp(-s*t), t=0..infinity);

no matter laplace it or integrate it, also failed

when doing ztransform

restart;
with(inttrans):
with(SumTools):
network := sqrt(2*p)*((s-p)^(i-1))/((s+p)^i)
ztrans(network, s, z);

error, recursive

http://en.wikipedia.org/wiki/Laguerre_polynomials

http://wenku.baidu.com/view/7d013c8c680203d8ce2f24ee.html  

how to evaluate to equation (5.9) in page 195 from rodrigues formula?

rodrigues := exp(x)*(x^alpha)/n!*Diff(exp(-x)*(x^(n+alpha)), x$n);
rodrigues := subs(x=2*p, rodrigues);
rodrigues := subs(alpha=1/2, rodrigues);

i want to plot a streamlines for the functions 

psi=2y-exp(-x):

for different values of psi=0,1,2,3 and x=0 to 1 i want plot stream lines 

Dear Friends.   I solve a group of linear equations and the memory is not enough and i can't 

adding a new hardware to the computer.

i increase the virtual memory of the computer from some chose for the operating system 

but it seem to me the Maple use the memory from the hardware only.

I want to know is there any method to  make the Maple using the virtual memory for 

the computer

Amr

When i use the pronumeral thetac (using greek characters) I initially get numeric data reported, but later in the script i get the pronemeral literally repeated (as though there is no value defined for this pronumeral).

This does not happen for thetahs (using greek characters), where I always get numeric results (through the entire script).

See the following script: sample_1.mw

I re-wrote the...

I just encountered a very strange behavior when using DEplot. I want to generate a slopefield and solution curves. However, when I enter the command, only the arrows in the slopefield are showing. If I click on the plot where the solution curve should be, I see the outline of the curve. It's as if the curve isn't begin colored. I hope someone is able to replicate this behavior and suggest a fix. Thanks! (See attached file) 

I have three functions f,g,h and I want to create an n by 3 matrix with columns: 

[f(1), f(2), f(3), ..., f(n)] , [g(1), g(2), ..., g(n)] , [h(1), h(2), ..., h(n)]

I can do this for a particular positive integer n, but I would like be able to just input n and get the n by 3 matrix.  I am new to Maple and could not find an answer easily.  Thanks.

I have a set of 9 equations and 9 unkowns. These equations are massive 9th order polynomials. The equations themselves are contained in a vector called "C" in the .m file that follows:

Cvector_with_a.txt    (please rename the .txt file to .m since this forum doesn't seem to allow the upload of .m files)

In order to solve the eqautions, you must first set the values of two extra...