s,k,mu,sigma are parameters.k is real number

Trying to create slope field for du/dt=-u^5 + u^3 - u^2 + u but can't get an actual slope field to come up. Help? 

Hi! Just got help for my first question about Maple in here and it worked out great! :-)

I got one more question, I think it might be difficult to do, but let's see.

I've got a worksheet with about 6 equations. These equations depend on one single variable at the start (the first equation results in a value that the next equation uses and so on), the problem is, the variable has 11 different values, and I want 11 results that come out from...

I   have  the function W(Xi(t),ete(t),diff(xi(t),t),diff(eta(t),t)), a function of 4 variales.

I want to have all possibles second order partial derivative of this function with respect those variables

I have a procedure that outputs an array but I want to be able to see this on a plot, preferably a line. The 1s being on one side and the 2s being on the other side. Would this be possible? I have tried "with(ImageTools):" and then Creating an image then using the View command to view it but it gives me a solid square for an output.

Could anyone help to translate this (below) into Maple.  The Mathematica code understanding is causing me frustrations.  I got about as far as just starting to create the boggle board with the GraphTheory package. Here's what I have,which is rally barely anything at all. My example board 3x4
a := Graph(undirected, {["a", "b"], ["a", "e"], ["b", "c"], ["b", "e"], ["b", "f"], ["c", "f"], ["d", "a"], ["d", "b"], ["d", "e"...

Hi!

I just started using Maple for my engineering study some weeks ago, i have had luck finding help by google and forums so far. But now i ran into the first problem i can't find any answers for.

I want to add some values in a table like you can in excel. The values have to change like everything else in the document when then references changes and

Dear All,

I need help in adding following two set of equtions in MAPLE, your help will be really appreciated:

w:=2*Pi*100:  O:=5*w

S1:=100*cos(O*t)*(cos(theta)-(1/3)*cos(3*theta)+(1/5)*cos(5*theta)-(1/7)*cos(7*theta))

S2:=100*cos(O*t)*(cos(theta-Pi/6)-(1/3)*cos(3*theta-Pi/6)+(1/5)*cos(5*theta-Pi/6)-(1/7)*cos(7*theta-Pi/6))

S:=S1+S2

Also

Addition of following two equations required pls

X1:=100*cos(O*t)*(cos(theta...

I've found a fundamental difference in the use of 

G2:=CopyGraph(G):
and
G2:=G:

where G is a Graph in the GraphTheory package.

If I change G2 in the first case, G remains the same.

If I change G2 in the second case, G changes together with G2.

(The same happens when G is an input parameter in a procedure. Normally formal parameters cannot be changed, but if G is a graph there is no error message when changing G). 

What to do, to make maple evaluate the limit

limit(exp(-a*x), x = infinity)

where a>0 as zero? Thank you!

Just wondering if the Mma translator has improved much from M12?  Is it still being improved? 

With a myriad of ways to code something I can see how difficult it could be to try to code from one changing language to another changing language and try to decide which way is best to display.  Be it more efficient and less intuitive (making the smallest possible code is sometimes quite cryptic and difficult to translate), or more intuitive and less efficient. ...

I've used the "unapply" command to calculate the several separarte transformation matrices (working a classical lamination theory problem in mechanics of composite laminates).  I'm now having a problem using these values to perform further calculations.  I've uploaded my file.  Basically, I;ve got to calculate some matrices and use those to calcuate other matrices.  Would anyone mind taking a look at it and letting me know if you have any suggestions...

I have a Matrix 'A' in maple with symbolic entries and I need to use that Matrix in matlab M file. The symbols with in 'A' are already initialized in M file.

How is this possible?

For Matrices 'A' of small dimension, I can use the codegeneration package to convert 'A' to Matlab Matrix and then copy paste.

But for matrices of 1000x1000, lets say, does not seem as a option.

Suppose one had 2 levels of evaluation and you only wanted to go back 1 level to uncover it's original components.  That would be no problem if nothing was cleared, but very unfortunate if it did. 

example,

a:=5*x^2-3*y^3:

b:=3*x^2+10*y^3:

c:=a+b
               

hi

for ex. i put the function X^2+2 on y. y:=x->x^2+2

how can i display what function is behind y later? of course i always could scroll up to the point where i defined it, but is there a shorter way? with variables, you enter them and see their value. it something similar possible with functions?

i now that i can see the function inmy example with y(x), but what if you have a function with 5 more?

thanks for help