How can I've shaded region with non-linear inequality, I have some potential function like V(r)=(1-2Me^-2lr+q²e^-4lr) and I want to shade area between this & x-axis,

when I'm doing it with inequlityplot, it says that inequality should be linear.

I am using maple (version 12) for the first time.  I want equations of x and y ( in terms of a) from these two given equations. The equations I got are very complex, how to simplify these equations?

Equation#1 is:

Equation#2 is:

From Equation#1, i find "y"

  

Now i put y in Equation#2

and from that euation, i can get x

but these equations are very complex..

I simply want to find the equations of x and y..
How to simplify it?

I want to make a plot of this function sine and imaginary cosine below,

psi(x):=sin(k*x)+I*k*l[2]*cos(k*x);

where

k:=n*pi/L;
 
L=1,n=1,l[2]=1;

plot(psi(x),x=0..5);

Plotting error, empty plot.

i always recieve this Error. Can someone help me with this. You can take any range of x including Pi if you wish , and as well provide me with refrences Text book on ploting functions if He/She knows. Looking forward for feedbacks. Thank you very much .
      
                                           

x11 := Vector([0.208408965651696e-3, -0.157194487523421e-2, -0.294739401402979e-2, 0.788206708183853e-2, 0.499394753201753e-2, 0.191468321959759e-3, 0.504980449104750e-2, 0.222150494088535e-2, 0.132091821964287e-2, 0.161118434883258e-2, -0.281236534046873e-2, -0.398055875132037e-2, -0.111753680372819e-1, 0.588868146012489e-2, -0.354191562612469e-2, 0.984082837373291e-3, -0.116041186868374e-1, 0.603027845850267e-3, -0.448778128168742e-2, -0.127561485214862e-1, -0.412027655195339e-2, 0.379387381798949e-2, -0.602550446997765e-2, -0.605986284736216e-2, -0.751396992404410e-2, 0.633613424008655e-2, -0.677581832613623e-2]):
y11 := Vector([ -21321.9719565717, 231.709204951251, 1527.92905167191, -32.8508507060675, 54.9408176234139, -99.4222178124229, -675.771433486265, 42.0838668074923, -12559.3183308951, 5.21412214166344*10^5, 1110.50031772203, 3.67149699000155, -108.543878970269, -8.48861069398811, -521.810552387313, 26.4792411876883, -8.32240296737599, -1085.40982521906, -44.1390030597906, -203.891397612798, -56.3746416571417, -218.205643256096, -178.991498697065, -42.2468018350386, .328546922634921, -1883.18308996621, 111.747881085748]):
z11 := Vector([ 1549.88755331800, -329.861725802688, 8.54200301129155, -283.381775745327, -54.5469129127573, 1875.94875597129, -16.2230517860850, 6084.82381954832, 1146.15489803104, -456.460512914647, 104.533252701641, 16.3998365630734, 11.5710907832054, -175.370276462696, 33.8045539958636, 2029.50029336951, 1387.92643570857, 9.54717543291120, -1999.09590358328, 29.7628085078953, 2.58210333216737*10^6, 57.7969622731082, -6.42551196941394, -8549.23677077892, -49.0081775323244, -72.5156360537114, 183.539911458475]):

> seq({round(x11[k]), round(y11[k]), round(z11[k])}, k = 1 .. 27);
{-21322, 0, 1550}, {-330, 0, 232}, {0, 9, 1528}, {-283, -33, 0}, {-55, 0, 55},

{-99, 0, 1876}, {-676, -16, 0}, {0, 42, 6085}, {-12559, 0, 1146},

{-456, 0, 521412}, {0, 105, 1111}, {0, 4, 16}, {-109, 0, 12}, {-175, -8, 0},

{-522, 0, 34}, {0, 26, 2030}, {-8, 0, 1388}, {-1085, 0, 10},

{-1999, -44, 0}, {-204, 0, 30}, {-56, 0, 2582103}, {-218, 0, 58},

{-179, -6, 0}, {-8549, -42, 0}, {-49, 0}, {-1883, -73, 0}, {0, 112, 184}

https://drive.google.com/file/d/0B2D69u2pweEvS0RVTFZWTnVKWms/edit?usp=sharing

{-49, 0}

there is a missing comma in this, is it the built in robot in maple playing human or my window make a joke?

this bug make me get an misunderstanding from mathematica stackexchange

https://drive.google.com/file/d/0B2D69u2pweEvZXp5WndMN0x5VGs/edit?usp=sharing

i can not display web correctly, What's wrong with me?

Hi ,,,,  I think it is a bug in Maple   "try to calculate int(abs(x-2),x);   ... does not give a right answer

I want to use Maple (dsolve command) to solve this problem, how do I input the command? Part (a) is enought.

I have tried the command, but Maple says "Warning, for {u(t)} arbitrary the system is inconsistent".

Thank you very much for your help.

How does one find a formula that  fits a given set of data  to the best advantage in Maple? 

e.g

a := [ 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10];

b := [ 0.001, 0.001, 0.001, 0.001, 0.001, 0.001, 0.001, 0.001, 0.001, 0.001, 0.011, 0.011, 0.011, 0.011, 0.011, 0.011, 0.011, 0.011, 0.011, 0.011];

c := [ -0.88, -8.87, -0.86, -0.82, -0.77, -0.71, -0.66, -0.62, -0.57, -0.54, -0.89, -0.88, -0.85, -0.81,...

I want to simplify my equations in Maple

In case of MATLAB i can write

a= 1:0.5:150;

 e= [0.001 0.05 0.151 0.201 0.301 0.951 2];

s= kron([e], ones(1, 12));

But, how to write and create matrix in this form using Maple? 

Thanks in advance

How to create a polynomial for the curve fitting of the 3D plot in Maple?

I have following data

a := [ 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10];

b := [ 0.001, 0.001, 0.001, 0.001, 0.001, 0.001, 0.001, 0.001, 0.001, 0.001, 0.011, 0.011, 0.011, 0.011, 0.011, 0.011, 0.011, 0.011, 0.011, 0.011];

c := [ -0.88, -8.87, -0.86, -0.82, -0.77, -0.71, -0.66, -0.62, -0.57, -0.54, -0.89, -0.88, -0.85, -0.81,...

Hello,

I have quite big problem with results processing from dsolv. 

reseni := dsolve(numeric, number = nclas, procedure = PopBal, start = 0, initial = inicon, procvars = dvars, range = 0 .. tend)

If I want a results from "reseni" in "tend" 

results(tend);

I got this one:

[t = 5., n[1](t) = 0.803965539772492772e-1, n[2](t) = 0.108666500575795332e-4,.........]

Now i dont know at all how I can work...

I would like to use Maple to expand the polynomial (1+x[1]+y[1])*(1-x[1])*(1-y[1])*(1+x[2]+y[2])*(1-x[2])*(1-y[2])*(1+x[3]+y[3])*(1-x[3])*(1-y[3])*(1+x[4]+y[4])*(1-x[4])*(1-y[4]). This is dreadfully complicated, but things are simplified by the fact that (in my situation) each x[i] and y[i] disappears when squared (x[i]^2 = y[i]^2 = 0 for all i). Is there a way to make Maple factor this into the computation?

Cheers,

a

Bonjour,

Comment calculer avec Maple une intégrale première de omega:=(x^2-y*(x+y^2))*dx+x*(x+y^2)*dy.

Merci d'avance,

Gérard.

Hi

I am getting the floating point error during the job running. it happens instantly for the first fopen command and after some calculations it happens for the second fopen command also.

I would be appreciated if you could help  me in this regards,

Thanks.

here is the code:

> restart;
> w := 0.5695419e-1; T := evalf(2*Pi/w); Cl := 137;
> A := -(int(sin(w*t), t));
> P0 := -subs(t = t1, A)/Cl;
> mrdot0 := int(P0+A/Cl, t = t1 .. t2);

Further tags : implicit form, Matlab codegen for GPOPS purposes

Hi there,

I would like to introduce my self and ask you for an advice. 

I have a four linked robot that i would really like to control by the meaning of the optimal control theory. The arm has 4 actuators (giving torques U) in corrispondence of 4 rotational joints. P parameters describe the system.

I got ht edynamic system with the Lagrangian method and now I have 4 2nd order...

Can someone help me whith this plot? Somehow Maple always says unable to evaluate the function to numeric values in the region.

File is attached.

Plots.mw