Hello everyone. I have a few questions. For example, a tensor 1 and 2 ranks in some coordinate system. It is understood the equivalence 1 rank tensor and a vector. How to determine the flow and the divergence of the tensor. Maple is already in the package VectorCalculus command flux and divergence, as in the subpacket Vectors Physics package has a command divergence. But what about the tensors 2 and higher ranks? Is it possible to do these things a uniform manner? Under flow tensor mean surface integral of the scalar multiplication of the tensor of the 2nd rank in the normal vector, followed by contraction. My sketches in the attached file.

Flux_tensor_field.mw

this module looks at the numbers in the list and reports "true" if they are nonnegint (whole numbers).  is there a way to make the printout go across the page instead of down?

                               -3
                             false
                              -2.5
                             false
                               0
                              true
                               1
                              true
                               3
                               -
                               2
                             false
                               Pi
                             false
                              (1/2)
                             5     
                             false
thanks in advance!

les

plot([Y2(t),-X2(t),0...100],numpoints=100);

Error, (in plot) procedure expected, as range contains no plotting variable

Completely new to maple. Not even sure where to start with this. Can't get the Simpson's or Trapezoidal Rule to work for me. Any help would be much appreciated

dear all

how do i do for deletion of some columns? example:

A:=Matrix([[1,2,3],[4,5,6],]);

change to this: A:=Matrix([[1,2],[4,5]]).

i have a Matrix 8*12 and i want change it to 8*8

plz help me.

and

and

Here is a serious achievement of the Roots command:

Student[Calculus1]:-Roots(2^x+3^x+6^x-x^2);

                              [-1]

plot(2^x+3^x+6^x-x^2, x = -6 .. 2, gridlines = false);





Download Roots.mw

The solve command also does the job here:

sol := solve(2^x+3^x+6^x-x^2);

allvalues(sol);


evalf(%):

The RealDomain:-solve command fails here.

I wonder how Maple solves it. It would be kind of Maple developers and experts to explain that.

PS. I tried printlevel:=10, but understood the output a little.

if I plot the equation (x^2-4=0) . how can I add the fixed point (-2,0),(2,0) to this curve?

daer all

how can i calculate eigenvalue and eigenvectors for a big Matrix?

example Matrix 12*12.

thank you

Here it is:

I'd like to input it as 2-D and solve for x as a function of t.

HPM_4.mwhi, I am using homotopy perturbation technique but there is arising an error in comaring coeffecient of p^0, p^1,.... plz help me

I am looking for a thread that had the animation of a house with transverse earthquake waves.

Can someone point me to that thread?

Hello

I want to solve this equation in Maple, but I can't - please help me.

60=18+69*e^(-0,0491t)

Thanks.

I want to plot two functions on the same 3D plot. X axis is Pa, Y axis is Pb, and Z axis is the value of each functions. (Profit1 an Profit 3)

I want to see dots (preferably different color) for each function's values based on different Pa and Pb combinations. So, it will be easy to navigate how these functions approach (or drift apart) based on Pa and Pb. 

I attached the maple file. My functions are Profit1 and Profit3.

Pa and Pb are probability values ranging 0 to 1, with 0.01 increment. I have the condition that Pa<Pb, always.

So, Pb = 0:0.01:1

      Pa = 0:0.01:(Pb - 0.01)  (This the for loop I use in MATLAB, I am not sure it is the same in Maple)

The constant values are:

c = 0;
p = 1;
wu = 0.8;
w = 0.5;
Ha = 100;
Hb = 200;

How should I plot these functions on 3D? I also wonder that if it is possible to plot this scenario on 2D. scenario1.mw

Can i make a system of equations like this in maple?

What i am trying to do is i want to get all system of equations. For example when n=2, then we should get 8 equations like D(1,1,1), D(1,1,2),D(1,2,1),D(1,2,2),D(2,1,1),D(2,1,2),D(2,2,1) and D(2,2,2). If n=3 then the number of equations is 27 and so on. Can someone please advice me on this?

thanks

witribm