The attached worksheet solves several equations and populates a spreadsheet; however, I have not been able to get all of the equations to evaluate numerically. The misstep in the procedure CircumStrain () occurs immediately after fsolving Eq17 for L. I would then like to calculate the numeric value of y_c using the numeric value of L. I have not been successful in getting the expression to evaluate numerically. Any suggestion or assistance is greatly appreciated.

Hi,
I have two question regarding graph.
the function is
f:=x^3-3*x*y+2*y^2-3*x+4*y+3:
http://img526.imageshack.us/img526/9642/24888170bc8.jpg
I usually work in Classic Worksheet.
in exercise 6, it asks me to find the orientation....
i can use mouse to find a "suitable" angle to view the graph, however,
what angle should i put in the command?
plot3d(f, x=-2..2, y=-2..1,axes=boxed,orientation=[?????]);
and anyone have some advice on exercise 7?
stationary points are (0,-1) and (3/4,-7/16)
thanks

Hello

I'd like to understand how the mersenne function works in Maple.

I typed :

> with(numtheory):
> interface(verboseproc=2);
> print(mersenne);

That printed out :

Hi,
how can i convert {x=a,y=b} to (a,b) using map?
> f:=x^3-3*x*y+2*y^2-3*x+4*y+3:
stpts:= solve({diff(f,x) = 0, diff(f,y) = 0},{x,y});
map2(eval,[x,y],[stpts])[];
[0, -1], [3/4, -7/16]
i want (0,-1),(-7/16) instead
thanks!

Hello,

I have another question for you.

I am trying to design an exercise where people would have to look at points and then connect some of them. It would be great if my points (for which I want to use pointplot) would have some sort of name next to them.

I actually want to make a loop creating those points, so inserting the "i" in that name would be really great.

Is this possible? (Maple help seems to say no)

Many thanks,

Fredbel6

I can generate matrix with the command

A:=Matrix(3,3,symbol=a);

How can I generate a symmetric real (large, not only 3x3) matrix with symbol=a ?

Thanks, Sandor

I like to use the:

interface(verboseproc = 2)

print(stats)

to see whats going on in the calculations. My question is how can I then see further in, I am trying to see how maple calculates the mean, median and standard deviation,

if I print(describe) it shows me the if statement for choosing which to function to run, but the next step I am stuck.

for example, I want maple to print out what it does when I type describe[mean](array)

thanks in advance.

-Josh

I was wondering if there was an even quicker, niftier way in maple to copy a whole bunch of executions from one place to another in a maple worksheet?

Perhaps something like cp(2,14) where that would copy lines 2 - 14 right where the command was written?

-Josh

The attached worksheet defines a procedure CircumStrain() which is supposed to create and populate a spreadsheet with the solutions of several equations. The problem is that the spreadsheet Strain is never created. Would someone please evaluate the worksheet and perhaps suggest a fix. Your assistance is appreciated.

Wayne

View 4865_Chan McMinn B.mw on MapleNet

Ive posted in the past about this, or similar, and it seems neither here or out on that scary www is there one person who knows and is willing to help.

Could someone either explain in better detail, or point me in the direction of better assistance as to how to compile even the simple OpenMaple Java sample supplied in the Help of Maple 11.

I have tried and failed, I know java, but once I had to start changing global variables of my system I started getting nervous.

This may be a bug, or maybe I'm just missing something. In Maple 11 on both Linux and Windows, the following snippet:

Hi,
>mystpoint:=proc(f)
> local A,B,Cstpts:
>
> uses Student[MultivariateCalculus]:
> stpts:= solve({diff(f,x) = 0, diff(f,y) = 0},{x,y}):
> Jacobian(

hi,
suppose i have a list
s:=[1,2,3,4,5,6,7,8,9]
and i want to know if all the elements are great than zero
so the outout "true" is expected in this case
and for s2:=[1,-2,3,4,5]
"false"
is expected.
any advice?
thanks,
CasperYC

Hiya, I'm trying to solve this pde in Maple:

> PDE:= diff(c(z,t),t) = k*diff(c(z,t),z$2) + w*diff(c(z,t),z);

where k, w are constants, but I don't know how to apply the boundary conditions:

c(0,t)=0 and 0=k*diff(c(z,t),z$2) + w*diff(c(z,t),z) at z=h

and initial condition c=f(z) at t=0

I know by hand you would solve by separating variables, but is there an equivalent method in Maple?

Eventually I want to plot c(z) for given times to show how the solution evolves... but one thing at a time!

Thank you everyone for all your help.
However, what I am leading up to in my research requires
that I overcome the following hurdle.
Let p[m] represent an unspecified function of three variables,
e1, e2, and e3. (In reality, the explicit formula for the
function is known, but I will not use that formula.)
m is an index. So, p[1], p[2], p[3] etc are different functions of e1, e2, e3.
I need to program an operator, T, which acts on p[m] and
returns - symbolically -
T(p[m]) = 1*e1*diff(p[m],e1) + 2*e2*diff(p[m],e2)
+ 3*e3*diff(p[m],e3)
In case anyone has guessed already, T has gone under such