MaplePrimes Questions

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

Hi all,

I have been trying to plot in Maple a Beta Prime Distribution using the Statistics package. I have define it through its density function and its range with the command

U := Distribution(PDF = (proc (x) options operator, arrow; x^(alpha-1)*(1+x)^(-alpha-beta)/Beta(alpha, beta) end proc), Support = 0 .. infinity)

and then assigned it to a random variable Z with the command

Z := RandomVariable(U)

Now I wanted to plot the density...

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

 I want to calculate successive roots of the following complex eq.

how can I set interval (?) for fsolve in the following code:

Hello,

I've been trying to force maple to find a solution of this differential equation:

ode := -((D@@2)(y))(r)-2*y(r)/r+y(r) = (2-V(r))*u[0](r)

dsolve(ode, y(r));

gives

y(r) = r exp(-r) _C2 + (exp(r) + 2 exp(-r) Ei(1, -2 r) r) _C1 - 4 

/ / /
|1 | |
exp(-3 r) |- | |
|2 | |
\ \/

/ 2 \ \

Hello. 
I have a workcheet, that is incompleete, when using

  > with(XMLTools);
  > ParseFile("FILE");

i get the wollowing error, but i cant seem to fix it by my selv in an xml editor. 
Here you have the file:

 

9.mw

 

Hope you can help

I'm pretty new to Maple 16.

 

I need to calculate a 6x6 transformation matrix for 8 different angles (8 different plys...classical lamination theory problem in mechanics of composites class), and I don't want to cut and paste the matrix 8 times changing the angle.  I want to put the 8 angles in a column vector (I think that's right...maybe it needs to be an array) and then have the transformation matrix call the angles one at a time to calculate a transformation matrix for each angle ...

Hello,

 

I have two sets of data representing two function that depends on x with a parameter A.

I need to do a fit on both data series at the same time so to fit with the best parameter A.

 

Here is how I do a fit on one function

 

> f(x):=A*cos(x-B)^(2);               
> g(x):=A*(cos(x-C)^(2)+ sin(x-C)^(2))^2; 
> fit1 := Fit(f(x), r, x, parameternames = [A, B, C...

I am trying to solve the following integral

beta^alpha*x^(alpha-1)*exp(-beta*x)/((1+x)*GAMMA(alpha)) 

with respect to x, between zero and infinity.

If i just integrate it the result that I obtain is

(alpha^2*beta^(alpha+1)*exp(beta)*GAMMA(-alpha-1, beta)+alpha*beta^(alpha+1)*exp(beta)*GAMMA(-alpha-1, beta)+beta-alpha)/beta

My problem is that the alpha is positive and consequently the GAMMA functions do not exist, since the argument...

Optimal_Portfolio_Ch.mw

I was using maple as a documentation software and was preparing some notes for my exam. I had a sudden computer shutdown and the file didn't saved properly.

The file now opens but most of the content is gone. Even the one which was properly saved.

I see Joe Riel 

Hello,

 

I need to solve bond orders in Maple the formula is

 

Bond order = [number of bonding electrons – number of anti-bonding electrons]/2

 

I need to implement it in Maple, I dk how

 

Thanks

when calculate the intersection of I2 and J2, i exactly follow this picture
https://skydrive.live.com/redir?resid=E0ED7271C68BE47C!311

however, it is G list which is not the stated in this picture

restart;
with(Groebner):
I2 := {x^2+y^3-1, x-y*x+3};
J2 := {y*x^2-1};
G1 := Basis({expand(w*I2[1]),expand(w*I2[2]), expand((1-w)*J2[1])}, 'tord', deglex(x,y));
G2 := Basis({expand(w*I2[1]),expand(w*I2[2]), expand((1-w)*J2[1])}, 'tord', deglex(w,x,y));

Dear All

How do I solve the followinh set of non-linear equations for the unknowns as given below:
    

    Zth1=R1(1-e^(-t1/tau1))+R2(1-e^(-t1/tau2))+R3(1-e^(-t1/tau3))+R4(1-e^(-t1/tau4))+R5(1-e^(-t1/tau5))+R6(1-e^(-t1/tau6))

    Zth2=R1(1-e^(-t2/tau1))+R2(1-e^(-t2/tau2))+R3(1-e^(-t2/tau3))+R4(1-e^(-t2/tau4))+R5(1-e^(-t2/tau5))+R6(1-e^(-t2/tau6))

    Zth3=R1(1-e^(-t3/tau1...

I'm trying to graph a contour map of this function: e^(y/x)

>with(plots)

>contourplot(e^(y/x),x=-3..3,y=-0.5..0.5)

 

I thought the contour map for this function would looks more like several lines intersects at the origin. But when I graph it on Maple, it doesn't looks like the graph I'm looking for.

 

Did I put in a wrong range?

 

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