It's a simple equation where I'm just getting maple to run through the steps.

eq:=(m+M)=a^3/P^2; 

solve(eq,P^2);   returns an unexpected error

I wanted to see if maple could solve for P^2, poking here and there seeing what does and doesn't work.  I know I could just type it in, but can Maple do this?  Maybe I'm missing something.

I am using Maple 12 build 347164 for research (as a grad. student) on Windows XP.

I have written a simple block of code to do some calculations repeatedly.  However, everytime I run the code, the amount of memory Maple is using increases (3-4 MB per time).  I am simply running the code again, and the size blossoms.  I have made sure that none of my variables are expanding (e.g., a list that isn't cleared).  This is troublesome because after 30-40 runs Maple is using over 800MB and my computer has only 2GB of RAM.

How do I enter this problem in Maple 12? I have a few like this and need to knwo how to input the equations.

1.)  Find the slope of the tangent line to the curve y=x^3+3x-8 at (2,6)

2.) The tangent line to the circle y=x^3 -6x^2 -34x -9 has slope 2 at two points on the curve. Find the two points.

3.)Find the slope of the curve y=x^5 at x= -2

i have Maple 12 Student edition. when i do a 5th intergration, and eval at Pi, i get a complex answer. how would i get it to display a rational answer ? h := t-> (1+t^3*cos(t))^(1/5); ((D@@5)(h))(Pi); evalf(%); simplify(%); -.1245723200-0.905070854e-1*I D1 := D(h); D2 := D(D1); D3 := D(D2); D4 := D(D3); D5 := D(D4):fsolve(D5(Pi)); -.1245723200-0.9050708540e-1*I thanks

I'm trying to eventually make some 3d plots of some finite fields and different operations on them. Unfortunately I need some way to restrict the input to integers since apparently floor-ing them isnt enough. Heres parts of my worksheet, if it helps: G := GF(2, 8, x^8+x^4+x^3+x+1) `&*` := proc () options operator, arrow; G:-output(G:-`*`(map(G:-input, [args])[])) end proc f[1] := proc (a, b) options operator, arrow; `&*`(floor(a), floor(b)) end proc > plot3d(f[1](a, b), a = 0 .. 255, b = 0 .. 255); %;

How do I create a button that performs multiple actions? For example, I might want to create a button that both differentiates and integrates a function with one click. So far, everything I have tried has resulted in evaluating the last action in the list.

Thanks.

Cloyd

Hello I'm working with some finite fields(2^8) and sometimes instead of viewing/working with a polynomial its easier to work with a number. Its easy to convert from polynomial to number by just letting x=2, but is there a easy and built in way to go the other way? Thanks

Hi,

I am using Maple 11 and trying to solve numerically the following easy system of 1st order, linear PDEs:

I have a set for which I want to multiply each value by a sequence.

The only way I know how to do this is to convert set->list, apply the sequence, Flatten and convert list->set.

The problem is that Flatten stops working when the list becomes large. Suggestions?

I've been trying to vreate a script which will provide the roots of the Bessel function of the first kind, and it's derivative.

 

The root of the Bessel itself is fairly straight forward, simply BesselJZero(m,n); however, I can't do the same for the derivative diff(BesselJ(m,n),n).

 

Any help would be appreicated.

I am using dsolve to integrate a system of equations, and I am using stop_cond to stop the integration when certain conditions are met.

The problem is, I want the integration to stop when condition 1 AND condition 2 are met, but when I use, for example

stop_cond=[y(t)-2,t-4]

it stops as soon as ONE of these conditions are met, not both. I want it to stop when y(t) is equal to 2 AFTER t=4, not before.

Any suggestions would be greatly appreciated!

 

Hi, i just want to write this equation im Maple,  how do i do it ?

 

 

 

thanks

Hi

I'm trying to find all solutions to a system of polynomial equations. I've tried using Isolate from the RootFinding package and for some choice of parameters this works well. However changing the parameters (i.e changing some of the coeffients of the polynomials), I get the error message.

Error, (in RootFinding:-Isolate) decreasing address previous=1e0f0020 new=10010020!

Any ideas on what this means?  possible ways around it? or other functions in maple that would give me all solutions?

Thanks, Steve.

 

View 127_phase coloring.mw on MapleNet or Download 127_phase coloring.mw
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I am trying to color  3D plots according to phase using color=argument(x)/Pi/2

I get different results depending on the form I enter the expression x, as shown on the worksheet. Any suggestions to make this consistent?

I am missing the F1-help to work properly after highlighting words
at least for the following

invfourier ---> completely missing (it is in inttrans)
invlaplace ---> completely missing
invmellin  ---> completely missing
fourier    ---> MTM[fourier], but not inttrans

Parts      ---> completely missing (expect it in IntegrationTools)
Flip       ---> ImageTools[Flip], but not...