Dear all,

I am tryong to use the density plot for the first time.

Following maple instructions in maplsoft, I type 

densityplot(xe−x2−y2,x=−2..2,y=−2..2,colorscheme=["𝙱𝚕𝚞𝚎","𝙶𝚛𝚎𝚎𝚗","𝙾𝚛𝚊𝚗𝚐𝚎"])

but I get the error below:

Error, (in plot/options2d) unexpected option: colorscheme =["𝙱𝚕𝚞𝚎","𝙶𝚛𝚎𝚎𝚗","𝙾𝚛𝚊𝚗𝚐𝚎"])

It actually works with one color, but not with colorscheme!

Nonzero complex numbers a, b, and c are such that every pair of the polynomials ( in x )
a*x^11+b*x^4+c, b*x^11+c*x^4+a, c*x^11+a*x^4+b has a common root. How to prove or disprove with Maple that all the three polynomials have a common root? I am aware of the resultant command in Maple.

http://www.mapleprimes.com/posts/38019-Calling-Out-To-C-From-Maple#

if i can use maple to call c# function such as AForge.QLearning

how to set some tasks for it to guess some system of polynomials to fit hibert series criteria?

how to set a game for it to run itself to discover itself?

Hello,

I have a worksheet that makes 38 Mo. I find it a bit huge because my code is only composed by 20 code lines. I guess that Maple has saved a important volume of data which makes the file very heavy.

I would like to reduce the size of my worksheet so as to be able to send it to colleagues.

How can I remove all the data save in a file?

I find how to display only the inputs but the data in term of size seems to be still present.

Thanks a lot for your help

what is the reason for negative value is displayed on the table? 

thank you for helping>>>>>mapel_prime.mw

Good evening,

I am trying to solve the following sum equation:

sum((factorial(n)/factorial(2*n))^n, n = 1 .. infinity)

but I require the step-by-step solution as to how it is done, but can't seem to find that option. 

If anone could help me out, that would be great.

Kind regards,

A

Dear, need help about Implicit finite difference method 

plz reply as soon as possible

Thanks

Hi,

Need help in plotting the function in the attached file. m, h and k are parameters.

Thanks

Bessel_Function.mw

> restart;
> u := -3*sqrt(mu)*tanh*(A+sqrt(-mu)*(x-(1/2)*mu*t))/sqrt(6*a)+3*sqrt(mu)*sech*(A+sqrt(-mu)*(x-(1/2)*mu*t))/sqrt(-6*a);

>
> mu := .5;
0.5
> lambda := 1;
1
> a := 0.5e-1;
0.05
> A := 1.5;
1.5
> plot3d([abs(u)], x = -3 .. 3, t = -3 .. 3);

Hello guys and gals!

I'm not strong enough with maple to get what the result I want.

It seems that it's because I'm asking for two lenths, and not a lenth and an angle, but I have no Idea how to tackle it diferently.

If you know a trick, please share it!

Here's an image:

http://imgur.com/xavAUoB

And here's the maple file attached (I think)

 complex_problem_from_the_internet.mw

Thanks,

Happy new year!

Hi,

  I think similar question has been asked by several people, but I did not find a suitable thread. My question is, suppose I have a probablity distirubtion function like

  p(x,y) = exp(-alpha (x+y) ) x^2 y^2 / |x-y|  , alpha>0

 x,y goes from - \infty to + \infty. This function is normalizable but unbounded, which makes the rejection algorithm a bit difficult(?).

  How to generate samping points from this type of probability distribution function?

Thank you very much!

hi. i am tottaly new to the maple and i have a problem.

consider function f with variables x & y which are not independent. x & y are functions of t and the relation is unknown.

for example i wanna to the below job:

define f as f=x^2+y^2

differentiate it with respect to t : diff(f,t) which should give me 2(dx/dt)x+2(dy/dt)y

i've googled it alot and i couldn't find anything usefull.

(the problem is how to set x as a function of t with unknown relation and use it in another function and then differentiate it with respect to t)

thanks alot :)

has anybody experienced issues with Maple connectiong to Solidworks?  There doen't seem to be much info ion trouble shooting a failed "OpenConnection" call.

thanks,

Bill

From a Maple Primes answer two years ago:

f(x,y) is the equation of a line through point [m,n]. The solve command finds values of a and b for which f(x,y) are lines through [m,n] and tangent to x^2 + y^2 = r^2.

f := proc (x, y) options operator, arrow; a*(x-m)+b*(y-n) end proc

solve([f(0, 0) = r, a^2+b^2 = 1], [a, b])

These commands are far from the conventional solution. Why do they provide the correct answers?

Dear all,

Thank you for helping me  to generate a table of values of f(x) starting with x=0 to 100 in steps of 1, that is for x=0,1,2,3,...,100.

I tried:

f:=x->2*sqrt(3)*a1*a2*(sum(pochhammer(1/3,k)*3^k*x^(3*k)/(3*k)! ,k=0..infinity)*sum(pochhammer(2/3,k)*3^k*x^(3*k+2)/(3*k+2)!  ,k=0..infinity)-sum(pochhammer(2/3,k)*3^k*x^(3*k+1)/(3*k+1)!  ,k=0..infinity)*sum(pochhammer(1/3,k)*3^k*x^(3*k+1)/(3*k+1)!  ,k=0..infinity));

tab_values:=[evalf(simplify(seq(Ni1(xx),xx=0..100)))];

But I the result is amazing.... I don't understand the problem.

Thanks