mapletrig.mw

Hi all,

I need to solve a simple integration as shown in the attached work sheet.  But don't know how to obtain the required answer as shown.

I shall be very thank full if you guys could help me out with this.

Best Regards

A.Q

Please excuse me if this question is too basic or has been answered before, though I've spent a couple of hours searching for similar questions without any luck.

I have the following expression, which is given in terms of other expressions:

Hallo Everybody!

I have a question concerning MapleSim5 and the "change of parameters during the simulation".

I am trying to build a kind of gantry crane, consisting of a vehicle with a pendulum. The mass on the pendulum can be pulled up and pulled down (the pendulum length can be varied). The inertia of the pendulum changes with this length of the pendulum. The pendulum is represented by a "Rigid Body". In this block it is possible to enter the matrix of inertia. 

Hello, 

I have to solve a system of two equations but I have the error message "Warning, cannot evaluate the solution past the initial point, problem may be complex, initially singular or improperly set up"

Here is what I did :

I have a problem in determine the relation between two variables in a polynomial equation f(l2,v)=0. The results of two methods puzzled me.
The first method I tried is use the fsolve command.
In equation f(l2,v)=0,the range for v is [3405,5054] and l2 is a complex variable.
I plotted the figure for the l2=l2(v) in complex plane.Because the degree of l2 is 8, I have eight curves in the figure.
Obviously, the order in the result of fsolve is indefinite, so it can...

please please help meeeeeeeeeeeeeeee

> restart;

> Ndx := 6; Ndy := 3; imax := Ndx+1; jmax := Ndy+1; Tb := 0; Td := 60; Th := 180; Tg := 80;
                                                     ...

Hi guys,

Maple solved numerically the following system of two coupled PDEs.

PDE1 := diff(a(x,t),t) = - 2*a(x,t) + 1*b(x,t)
- exp(- 1/(1 - (x-0.5)^2))*( diff(a(x,t),x,x) + a(x,t)*diff(b(x,t),x,x) - b(x,t)*diff(a(x,t),x,x) );

PDE2 := diff(b(x,t),t) = - 1*b(x,t) + 2*a(x,t)
- exp(- 1/(1 - (x-0.5)^2))*( diff(b(x,t),x,x) - a(x,t)*diff(b(x,t),x,x) + b(x,t)*diff(a(x,t),x,x) );

IC := [ a(x,0)=exp( - 1/(1 - (x-0.5...

I have a variable x, and trying to get an output of E00. Here is what I have :

with(LinearAlgebra):
x:=2:
g:=Matrix([[3ξ+5x,8x-7ξ,2ξ],[ξ,4ξ+9x,7ξ].[5ξ,ξ,4x-6ξ]]):
h:=RandomMatrix(3):
p:=g.h:
E00:=(map(int,p,ξ=1..3))

I would like to change x to 2,4,6,8,16 and have different output of E00 and later on plot a graph. I have been trying to run them seperately. Is there a way for me to key in the inputs of x at one go? Please help. Thank you very much.

Hello,

I am having probrems to do the following.

- I want to solve 2 equations A and B, which have to be solved numerically. (get x(t) and y(y))

- With the solution to A and B, I have to input a combination into other equation C. And then get the solution for other variable. (solve z''(t) + (k/t^2 + V(x(t),y(t))z(t)=0)

I could solve evertything togewther. The only problem is that the second part...

Which library is this hflogb implemented in? I could not find it in either libc or libm.

What is the exact name of the function that has been changed in 64bit distributions?

(Knowing this, there would be an easy fix. Even now, one can run older maple on newer linuxen: simply copy the old system libs (from /lib/x86_64-linux-gnu and /usr/lib/x86_64-linux-gnu to a library under the maple install dir and tweak LD_LIBRARY_PATH in the maple wrapper script), but identifying...

Dear MaplePrimes,

I have a problem findning an explicit solution to an equation solve((P[h]-tau[h])*q[hf] = (P[f]-tau[f])*q[fh], [lambda[h]])]. Is you can see from my syntax, I have assumed a RealDomain and also that all parameters including the varialbe I'm solving for lambda[h] are positive, and also that lambda[h] is between 0 and 1. This is my syntax:

test := `assuming`([RealDomain:-solve((P[h]-tau[h])*q[hf] = (P[f]-tau[f...

hi,

I am trying to solve a system of non linear simultaneous equations.

It keeps showing the warning that solution may have been lost.

I need urgent help.

Download eqn.mw

Thank you.

Dear All,

I am trying to create a matrix of a function nsi(m,k) file attached to the question.

I shall be very thankful if you could help me in creating a matrix as explained in the file.

maple1.mw

Best Regards

A.Q

Hi,

I would like to solve the system of PDEs

PDE1 := diff(a(x,t),t) = - 2*a(x,t) + 1*b(x,t)
- 4*( diff(a(x,t),x,x) + a(x,t)*diff(b(x,t),x,x) - b(x,t)*diff(a(x,t),x,x) );

PDE2 := diff(b(x,t),t) = - 1*b(x,t) + 2*a(x,t)
- 4*( diff(b(x,t),x,x) - a(x,t)*diff(b(x,t),x,x) + b(x,t)*diff(a(x,t),x,x) );

subjected to the initial value

IC := [ a(x,0)=exp( (x-0.5)^2 ), b(x,0)=0 ];

If I try to do so by typing

pdsolve([PDE1,PDE2],IC,numeric);