hi, i have a procedure to multiply two matrices below

mymatrix:=proc(A::Matrix,B::Matrix)

local i,j,k,q,C;

uses LinearAlgebra;

C:=Matrix(RowDimension(A),ColumnDimension(B));

for i from 1 to RowDimension(A) do

for j from 1 to ColumnDimension(B) do

C[i,j]:=0;

for q from 1 to ColumnDimension(A) do

Dear Maple users

I am having a problem with a simple for loop. I cannot seem to figure out what is wrong. I want to define a number of Random Variables of the ChiSquare kind, with increasing number of degrees of freedom as the figure below suggest. When defining them one line after another everything works well. My idea was then to make a for loop, since I might want many Random Variables defined. It doesn't work however in the way I do it. All...

I want to evaluate - del(psi)/del(x) analytically in MAPLE. I wrote the following lines for the purpose :

deltat := proc (x) options operator, arrow; lambda*x^m end proc

Gr := proc (x) options operator, arrow; g*beta*deltat*x^3/nu^2 end proc

xi := proc (x) options operator, arrow; g*beta*x/c[p] end proc

eta := proc (x) options operator, arrow; (1/4)*y*4^(3/4)*Gr^(1/4)/x end proc

psi := proc (x, y) options operator, arrow; nu*4^(3/4...

How do I prevent that maple scrolls through the worksheet and stops at the bottom when I want to execute the  whole worksheet. If i want to execute the whole worksheet I just want to stay at the same place in the worksheet and I also don't want to expand previousily closed sections. I use document mode. Thanks in advance

I have a polynomial T:=x-2*y-z + 3;

When i input coeff(T,x); i got 1. How can i get the coefficient 3? Please help me. Thank you.

Just a curious question.

Why when some new applications are added to the application center they do not always get inserted at the top of the list? 

In Vector Calculus there are excellent commands for finding the normal vector to a curve (PrincipalNormal and TNBFrame) but none for finding the surface normal vector. It is possible to display the surface normal vector using PlotPositionVector's normal option, but this is good for visualization only, and the vector can't be used for further calculations.

Am I missing something, or is this really missing form the package?

Two example problems to be solved:

would like to solve for x in terms of z from z in terms of x

however, x2 = RootOf(z2-z3-z1+_Z^3) , what is _Z ?

ex1 := {z1=x1, z2=x3-x2^3, z3=-x1+x3, z4=-x1+x4};
solve({z1=x1, z2=x3-x2^3, z3=-x1+x3, z4=-x1+x4},{x1,x2,x3,x4})

{x1 = z1, x2 = RootOf(z2-z3-z1+_Z^3), x3 = z3+z1, x4 = z4+z1}

aim: To solve the van der pool DE  assuming pertubation expansion

I have the bellow code:

display(a); display(b);

where a, b are plots.

The output are two plots on two lines. How can I get the plots to be on the same line? 

Hi,

Is it possible in Maple to output a complex number using j (or i) instead of I ?

thanks,
Andrew

Hello,

I wish to enter in the math dot operator but I can't find the way to enter it in the document mod. I also searched the help and did not find a way.

all I want is to enter dot(varphi)

thanks

Rami

Hi

I have used the series command to expand sin(x) as a Taylor series about x=0, as follows:

In Maple 14

with(epsilon); > f:=[(x-u)^2+(y-v)^2-1,v^2-u^3,2*v*(x-u)+3*u^2*(y-v),(3*w*u^2-1)*(2*w*v-1)]; > printlevel:=2:

               Epsilon 0.618 (C) 2003 by Dongming Wang

[CharSet, ICS, IVD, PID, Prove, RIM, RegSer, SimSer, TriSer, Tsolve,

        dTriSer]

              ...

When I type a operation in maple such as limit, derivative, integral... then I enter. It only show the result. but I want it to show clearly  each step of  solving. What should I do?

Thank