I inputted the folllowing into Maple.

with(plots):
contourplot(x^2*y/(x^4+y^2),x=-1/2..1/2,numpoints=60^2,color=blue);

However it is giving me this error:

Error, (in plot/iplot2d/expression) bad range arguments x = -1/2 .. 1/2, numpoints = 3600

I don't understnad why.

My lecturer has completed this graph and I literally just copied what she had written on our worksheet in order to acheive the same...

Please write for me a code for the following problem.

Problem. Find all the values of m for which the function

f(x)= (x^2 + 2*m*x  + m+2)/(3*x+m)

is increasing in each interval (-infty; -m/3) and (-m/3; + infty)?

Thank you.

I am trying to model a multibody system using euler lagrange equation. There are 3 links in the system attached with each other by revolute joints. The first link has one end fixed with the revolute joint.

Length of links= l1,l2,l3

Angle with x axis=Theta1,Theta2,Theta3

Mass of links=m1,m2,m3

Moment of Inertia = M1,M2,M3

I am not able to find the solution of ODE system comprising of 3 ODEs which I get after solving Euler Lagrange Eq for...

Hi,i'm new with maple, please help me solve these 2nd order ODES :)

x''=-x/((x^2+y^2)^(3/2))

y''=-y/((x^2+y^2)^(3/2))

my codes are:

declare((x, y)*t)

deq2 := diff(x(t), `$`(t, 2)) = -x(t)/(x(t)^2+y(t)^2)^(3/2), diff(y(t), `$`(t, 2)) = -y(t)/(x(t)^2+y(t)^2)^(3/2)

ic2 := x(0) = 1, (D(x))(0) = 0, y(0) = 0, D(y) = 1

rosen := dsolve({ic2, deq2}, type = numeric, stiff = true, {x(t), y(t)})

Dear,

I wrote a code used for calculate integration using monte carlo method (in order to get random results).

I also wrote the code using maplet in order to get the interface.

However, when I finished I could not receive the result because of the error:

Error, (in Maplets:-Elements:-Maplet) `Maplets:-Elements:-ElementTable[typ]` does not evaluate to a module

I do not understand this error and how to correct it.

I need the help from others.

I want to solve the equation 12^x -6^x +6-36/(3^x)=0 with the commant

solve(12^x -6^x +6-36/(3^x)=0,x);

but i didn't receive solution x = 1. Please help me.

A  group of boy and girl students  compete to eat pizza at super market .One pizza was cut 12 pieces one boy student  could to eat 6 or 7 pieces and one girl student could to eat 2 or 3 pieces .

If they put  4 pizzas they will not see enough  if  they put 5 pizzas will over .

How many boy and girl students who compete ?

How do I add constants in a new package under an existing one?

For example, I want to add a new package named Astronomy under the Scientific constants package that contains more solar system data ie M[Jupiter], M[Saturn] etc...  or is it better to create the new package by itself?  How?

I'm trying to have Maple automatically assign values to variables that are given in a list.

This is my function:

optp:=Maximize(F(w1,w2,w3))

optp:=[0.345,[w1=0.05,w2=0.6,w3=0.35]]

Now how do I get Maple to automatically assign w1,w2, and w3 to the values given in the output?

I tried this code:

w1:= optp[2][1];

Does anyone know what the beneath error stated after the following coding means, can't find
the solution,     
Although looked in mapleprimes site, and thanks for Joe Riel who pointed out the same problem in 
2010,2 June...

But, it seems there is still no vivid solution for such problem, how to follow


k:=20:
m:=4:

p[0] := 1:

tr := 4:

frame:=100:
omega[n]:=sqrt(k/m):

T[n]:=(2 pi/omega[n]):

Hey everyone,

   When I type ?command to view help pages, Maple always says "No Matches Found." For example, when I enter the command ?plot to bring up a help page on plots, Maple will say "No Matches Found."

How do I obtain the Maple help files?

Problem. write the equation of the line cut the two lines d1: x = 2*t, y= -t+1, z = t-2, d2: x = -1+2*m, y = 1+m, z = 3 and perpendicular to the plane 7*x+y-4*z=0. 

This is my code. 

> restart;with(geom3d):

with(LinearAlgebra):

a:=[2*t,-t+1,t-2]:

b:=[-1+2*m,1+m,3]:

line(d1,a,t):

line(d2,b,m):

 Hi 

I am usign dsolve for maple to give my a fuction z(t) . Maple solves the differential equation but i want maple to give me the exact number for specific t values z(60) and so on. But maple is given as an answer z(60) and not a number 

Problem. write the equation of the line cut the two lines d1: x = 2*t, y= -t+1, z = t-2, d2: x = -1+2*m, y = 1+m, z = 3 and perpendicular to the plane 7*x+y-4*z=0. 

This is my code. 

> restart;with(geom3d):

with(LinearAlgebra):

a:=[2*t,-t+1,t-2]:

b:=[-1+2*m,1+m,3]:

line(d1,a,t):

line(d2,b,m):