I am a novice user in Maple with some previous Matlab experience. My question is the following: I am thinking about doing some Maple calculations. The  calculations will involve (in the easiest case) about 15 (symbolic) variables , and it will require all kinds of symbolic differantation, integration etc. such as F(x)=b(t) where x is the symbolic variables and t is the differentiation parameter (all symbolic).   I would like to know how many variables Maple can deal...

Hi Dr. Kamel Boughrara,

I have a question,  I know phi = B*A, but in code i can't understand a part of it, can you kindly explain it in engineering terms.  

kindly see the attach file for phi.

Second question

why e-->sum(factor(e(t)),n=1..100), wht this means, 

A simple question, the answer of which is eluding me. How do you echo the input to the output without performing any processing (e.g. solving, simplifying, factorizing etc.) whatsoever?

Hi guys,

I am working on the following pde

m₀=-Bw_ssss+(F_t-Bw_ss²)_s(w_s+r_s⁰)+(F_t-Bw_ss²)w_ss+q

where

F_t=EAe+T₀+p_wgPiD_o² (H_w-z)/4-p_mgPiD_i² (H_m-z)/4

Hi,

I am missing two options in the "fieldplot3d" command, which I am using in cylindrical coordinates: one is "style=contour" and the other is "axes=cylindrical" where apparently only the "axes=boxed" option as available.
Any ideas how I can get this?

Or can I show a polar plane at one end of the cylinder? like in the post:
http://www.mapleprimes.com/questions/38553-Plot-3D-Cylindrical-Coordinates

this is my plot:

with(plots):with(VectorCalculus):

Hi Dr. Kamel Boughrara,

I have question regrding the analytical solution in section 3.3,  I am attaching a file.   Question is regarding  the programming you did, does it has any effect on the solution.  Because i tried to change the values for p, and other variables but could't see the effect.

Also wht the following variable means;

Hi i´m writing a paper about math and i use maple 10 and M. Word 2007 for it, i started with a Laptop with Windows 7 and when i finished it, i open the archive in a desk computer having the same especifications  i notice that the images of ecuations were altered changing "+" and "-" for "C´s" and "K´s", i tried a lot of computers with others especifications and my problem still the same, i changed the format and other stuff but i can´t...

My problem is the following:

I need to add the elements of a matrix (300 by 2) of real numbers  in such way that i will get a new list of elements each one of which will be defined as the sum of all the previous elements plus itself (i mean the elements found in the first matrix).

To make it more clear i want with that way to get results for an intergration made by the trapezoid rule which is not applied to a function but to a list of values stored in a...

Let's consider the following functions:

1/x,1/(exp(x)-1),1/sqrt(x)-all have a singularity at x=0.All got almost similar plot.Now,making the decision if the integration blows up or not at x=0,just by looking at the plot could be misleading.So after integration from 0 to a finite value,say 1, Maple provides the answer-the first two diverge,the last one converges to 2.Now how can I be certain that Maple just simply didn't make a mistake about the first two?Is there any...

Hi all,

For example, I have this equation:

restart: eq:=diff(theta(t),t)*y(theta(t))+x(t)=sin(x(t));

and

wm:=diff(theta(t),t);

I want to replace in eq, wm:=diff(theta(t),t). I used commands eval, subs as:

subs(diff(theta(t),t)=wm,eq);

eval(eq,diff(theta(t),t)=wm);

but with no result

Thanks for any suggestion

Kamel

Hello,

I am trying to plot the normalized stress values for tension and shear and I would like to reverse the range of the abscissa (x-axis) values for one of the stress values.  The normalized stress values I am interested in are calculated by dividing the calculated stress value by the yield stress for the material in question.  For example, a calculated tension stress of 10 ksi in carbon steel (yield stress = 36 ksi) results in a normalized stress value of 10/36 = 0.27.  I am not having any difficulty normalizing the values; however, I do not see where I can reverse the range of the plotted values from high to low.

Thank you for your assistance.

Kind regards,

Maple 13 here.

The help documentation talks about an "Input Display Drop-down List", likewise for Output. What "Input Display Drop-down List" ? ... I can't see this anywhere.

I have a for loop which run 50000 times.

I have a dual core cpu made by amd, so parallel is a better choice.

There are two packages in Maple 15: Grid and Thread.

I want to know which one is more effeciency?

And in my program,there are no intersection between for-loops.

how to programming in parallel?

Thank you in advance.

I have a hysteresis plot wherein the y axis is the piezometric data while the x axis is the reservoir level. The plot is some sort of a loop but not well defined. I need to reduce the hysteresis plot to make it appear like a clustered points in a single line. What I meant is that, so that the hysteresis plot will redound to a single line plot.

Does anyone know of a working link to the worksheet for this Application Center item?

This is entitled, "Comparison of Multivariate Optimization Methods" and according to the html version it was authored by Sergey Moiseev (who I believe uses the handle mois here on Mapleprimes).

The link to the .mw is broken at that App Center page. And...