Hello all, first time posting on here so if I make any mistakes please let me know. So I have created a function called "g" and plotted it on a graph. After looking at the two graphs I have plotted (one with discont=false and one with discont=true), I can see 3 discontinuities are present. However, attempting to solve for these discontinuities by setting the denominator of "g" = 0 only returns 1 of the points. I'm not sure why this is happening and how would I go by solving for the other 2 points? Thank you.

Dear all,

My script has multiple animations, in which the range of the variable is larger then I wish to see. Therefore, I have used the view=[x₁..x₂,y₁..y₂] command, which has different values for every plot. Plotted seperately, this gives me exactly what I want. However, if I combine the plots using display(A,B,C) they loose their individual views. Instead, maple chooses the view of plot A, and plots B an C in the range defined by view A. 

Is there a way to combine plots and still maintain individual views, within the largest view?

Kind regards,
Bastiaan Overdorp

Am trying to valid a research work done by kuiken(1968)

Kuiken_(1968).pdf

where we have this two eauations:

restart;
Digits := 35;
with(ODETools);
with(student);
with(plots);
inf := 4;
equ1 := diff(f[0](eta), `$`(eta, 3))+theta[0](eta);
equ2 := diff(theta[0](eta), `$`(eta, 2))+3*f[0](eta)*(diff(theta[0](eta), eta));
Bcs1 := f[0](0) = 0, (D(f[0]))(0) = 0, theta[0](0) = 1, theta[0](inf) = 0, (D(D(f[0])))(inf) = 0;
S1 := dsolve({Bcs1, equ1, equ2}, {f[0](eta), theta[0](eta)}, type = numeric, method = bvp[midrich]);
proc(x_bvp)  ...  end;
S1(0);
[                            d                   
[eta = 0., f[0](eta) = 0., ----- f[0](eta) = 0., 
[                           deta                 

    d   /  d            \                                          
  ----- |----- f[0](eta)| = 0.82449782146165697398999365896678734, 
   deta \ deta          /                                          

  theta[0](eta) = 1.0000000000000000000000000000000000, 

    d                                                         ]
  ----- theta[0](eta) = -0.71098574970825563256340736114251047]
   deta                                                       ]
S1(inf);
[                                                            
[eta = 4., f[0](eta) = 1.7815670728545914261072119522795076, 
[                                                            

    d                                                      
  ----- f[0](eta) = 0.51061876174095320088291844433043562, 
   deta                                                    

    d   /  d            \                           
  ----- |----- f[0](eta)| = 0., theta[0](eta) = 0., 
   deta \ deta          /                           

    d                                                             
  ----- theta[0](eta) = -0.000054818176138173095945902421930470836
   deta                                                           

  ]
  ]
  ]
 

Pls, I need to find the function of the limit of f[0](eta) at eta tend to infinity. checked equation 45 of the attached document and for the two equation pls checked equation 36 and 37 for the ODE equation solved above.

Kuiken_solution for equation 36 and 37.pdf

Is it possible to animate plot like this parametically:
animate(plot, [[cos(t), sin(t), t = 0 .. A]], A = 0 .. 2*Pi, scaling = constrained, frames = 50)

however given the x and y components as solutions of an implicit equation.

I know I could run RootOf. But it seems that there is a part missing due to a branch cut :-/

What do people find a good screen size is? 

Personally I find two monitors would be ideal for using Maple and especially Maplesim.  I'm going to be adding a second monitor, probably a 20".  Maybe 24" is better?  I think 20" would be enough.  Just wondering how many monitors people out there work with and their monitor sizes.

After changing the time and date on my computer, I get a message saying “Invalid or missing license file.” whenever I try to open Maple. I have tried activating it with my license code. It then gives me a message saying “Activation succesful! Please restart Maple for the new license file to take effect.”. After opening it again, I will once again get the original message. I have also tried reinstalling it twice. One time with the file my school provides, and with a file from Maples website. I get the same error message no matter what I do. 

I haven't been able to access Maple for several weeks now, so I'm getting a bit behind in math class.

How should I go about fixing this?

Hi all,
I have a question about editing strings in Maple2016.
When I make a variable "DataName" which is as below in Maple worksheet,
DataName:=Array(["Data1","Data2","Data3"]):

I want to make the variable "DataSet" whose elements are as below.
DataSet:=[1="Data1",2="Data2",3="Data3"]

Of course I can type the elements of "DataSet", but if the number of DataName increases, it requires a lot of time to do that, so I want to make the "DataSet" by using general command so that I can obtain "DataSet" automatically.
I tried to use the command "cat", "||", "map", and so on... but I could not find how to do that.
Is there anyone who can solve this problem? Please let me know how to solve this problem. I appreciate any idea you may have.

Always thanks for the nice answer

hi..

is correct this answer for differential equations??

i think order of result should be in (10^6 or 10^9 or higher) range....

please check it

thanks

hpp.mw
 

Download hpp.mw

Dear all

I have n, p two integers greater than one

I would like to minimize the following real number by a fixed positive constant if its possible

(n/(n+p))^(n/p)-(n/(n+p))^((n+p)/p)

Many thanks

staganation_point11.mw
 

Download staganation_point11.mw
 

Download staganation_point11.mw
 

Download staganation_point11.mw

in this program im trying to combine the result, but it showing some error can help me please

How can I sketch the angles such as Pi/6 , Pi/4 or 7Pi/6 and etc by Maple 18? In general, what is maple commend for sketching angles?

Hi

Here is my question: 

I have been trying to plot this on maple but i only get an ampry box

-arctan((2.m.x)/(1-x^2))

Simple as that... M is between 0 to 10

And x and y are supposed to fmbe from 0 to infinity(i dont know what to write for infinity so i give a large number like 2milions)

Am a post graduate student. am using maple as soft ware.. How can I create a 15 x 15 matrix in maple?

I have a data point set:

x_val:=<250,300,350,397,451,497,547,593,647,691,745,788,840,897>:
y_val:=<0,0.5,2,6.3,23.2,48.7,71.2,83.4,90.1,92.8,94.7,95.7,96.9,97.8>:

I want to make a least square fit using this difficult function:
 

function:=x->1-exp(-(k*exp(-(E/(8.314*873.15))*((873.15/x)-1)))*(0.026/350))

but both Statistics[Fit]:
 

with(Statistics):fit_nelog:=Fit(1-exp(-(k*exp(-(E/(8.314*873.15))*((873.15/x)-1)))*(0.026/350)),<x_val|y_val>,x,parameternames=[k,E],output=[parametervector,residualsumofsquares]);

and DirectSearch[DataFit]:

with(DirectSearch):fit_nelog2:=DataFit(1-exp(-(k*exp(-(E/(8.314*873.15))*((873.15/x)-1)))*(0.026/350)),x_val,y_val,x,method=cdos);

give wrong k,E parameters. The correct parameter values were obtained with Excel Solver:

k=27843.3551042397

E=68.4

The approximately correct parameters were fitted when using logarithm form of the function.
How can I obtain correct parameter values in Maple using given form of the function?

int(a(t)*b(t)+2*(diff(a(t), t))*(diff(b(t), t)), a(t));
Error, (in int) integration range or variable must be specified in the second argument, got a(t)
 

do not understand this error message,

how to integrate it?