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...

The Maple dsolver is very powerful, but everything has advantages and disadvantages. I was recently asked the following question.
Let us consider the system of ODEs
>restart; sys := [diff(y(x), x) = -(4*cos(x)*y(x)+z(x)*cos(x)^2+3*z(x))/(sin(x)*(cos(x)^2-9)),
>diff(z(x), x) = -(y(x)*cos(x)^2+3*y(x)+4*z(x)*cos(x))/(sin(x)*(cos(x)^2-9))]:
The functions
>y1 := C[1]*(cos(x)+1)^(1/2)/(cos(x)+3)^(1/2)+C[2]*(1-cos(x))^(1/2)/(3-cos(x))^(1/2):
>z1 := -C[1...

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

I came across this post http://www.stiglerdiet.com/2012/02/10/mathematica-a-love-story/

and in the commented section near the end someone mentions this can not be elegantly done in Maple.  I would like to disprove this comment.  He says "There’s NO WAY any numeric language like R or Maple can try to do this."

I don't believe it, and I welcome anyone to disprove his...

`if`(p::`+`, nops, 1)(p);

'if'(p::'w', nops,1)(p);

w not exist