Maple Questions and Posts

These are Posts and Questions associated with the product, Maple

Dear Maple Prime,

 

I'd like to know if when I use the Solve command, I can restrict the solutions to REAL solutions?

 

THanks,

 

Christian

What I mean is for example, the series

# 1-t+t^2-t^3+...;         -----------------------(1)

equals to

1/(1+t); # modulus of t < 1 --------------(2)

so given the terms in (1) above could maple deduce (2)  ?

 

Document Blocks

I have been trying to follow the steps in the help page for Document Blocks. The instruction to select all the lines and then select View->Inline Document Output. Problem is, that it simply refuses to work at this point. Any clues, please ?

Hello mathematicians :)

I have a problem finding the inverse of the following 12x12 matrix:

C:=Matrix([

[ 1, x1, y1,    x1^2, x1*y1, y1^2,      x1^3,    x1^2*y1, x1*y1^2,   y1^3,      x1^3*y1,   x1*y1^3],
[ 0,  0,  1,       0,    x1, 2*y1,         0,      ...

> solve({G*{(1-v)*s1+v}+H*{(1-v)*s2+v} = n1, G*{(1-v)*s1*w^s1+v*w^s1}/w+H*{(1-v)*s2*w^s2+v*w^s2}/w = -p*(1+v)*(1-2*v)/(e*w^beta)+n2}, [G, H]);
print(`output redirected...`); # input placeholder
Warning, solutions may have been lost
[]

Does maple use the acml,

it is almost that in every version the Intel MKL is the latest

I want to plot three cumulative normal distributions. I know the parameters mu and sigma from each function. If I give the commands 

f:=int(1/sqrt(2*Pi)/sigma*exp(-(x-mu)^2/2/sigma^2),x);             1
plot(subs({mu=0,sigma=1},(1)),x=-4..8);
 

I get a 2d-plot. But I want to illustrate, how functions can be moved in space. In the 2d-plot, the x-axis illustrates the values of the random variable and the y-axis illustrates...

I wrote some code involving chrem that broke in a recent version.

> y := Vector([0]):
> yp := Vector([1]):
> trace(chrem);
> chrem( [y, yp], [1,3] );
{--> enter chrem, args = [Vector(1, [...], datatype = anything), Vector(1, [...], 
datatype = anything)], [1, 3]
n := 2

v, m := [0], 1

v := 0

I am trying to find a way to programmatically start a Maple animation, specifically after a custom button has been pressed.

Equivalently, I would be happy with being able to pass an option do "display" function, so that when I use it to create an animation, it is running from the moment it appears on the screen.

Any hints will be greatly appreciated.

HI DR. Kamel Boughrara,

I am trying to understand the analytical magnetic field modeling of slotless PMSM, but it would be of great help if you could define the variables, like  mp =3,  QS=24, ap=1, p=2, q= QS/2*p*mp, tt, Qt and pls also iMX=10,  I am attaching the code for your kind answer.

Thanks

A.Q 

 

 

codetounderstand.mw

Let a function f be defined on the set of all real numbers and satisfy the relation
f(x+y)=f(x)+f(y)+80*x*y. How to find f(4/5) with Maple if f(1/4)=2?

Thanks Markiyan and Dr. Kamel.  Dr. Kamel I went through the link you gave me but couldn't find how to solve poissons equation using separation of variable method using Maple14.  I am attaching my file for your kind consideration.  Pls suggest me how to solve. 

Thanks in advance

A.Q

 

Poissonequation_solu.mw

Hi all,

I have to solve a ODE stated as follows:

PDE := expand(Laplacian(u(r, theta)) = M[r]/r)

But the problem is I don't know how to define M[r],  which is summ of "M[n]*cos(n*p*theta), where n is 1.3.5, 7...infinity

I f i write it precisely its  "summation of M[n]*cos(n*p*theta), where n =1.3.5, 7...infinity. 

Thanks in advance

A.Q

 

 

Hi, I have not found a post that explains how to create a colorbar for a contour plot with or without filled regions.  At the moment, I manage to create a color bar manually as follows.

First, I plot some function like so,

plots[contourplot](i/(1-(1+i)^(-n)), n = 15 .. 30, i = 0.1e-1 .. .15, axes = frame, contours = [seq(0.1e-1*n, n = 5 .. 16)], filledregions = true, axis[1] = [location = low, gridlines = [10, majorlines = 1]], axis[2] = [location = low, gridlines = [10, majorlines = 1...

In the following worksheet I want the plot, but Maple can't generate it . I tried two ways-the first one took almost 40 minutes and gave an empty plot, the second one took almost 10 minutes and generate an incomplete plot.Also the integration is very slow,but still,it can do it.

So,can anybody help me with a better way to do things-using other numerical schemes/advanced plotting options-whatever it takes?    Or at least explain what is going on?

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