⊆

not this form “⫋”

Hi I 'm using algsubs and i want to substitute p=((m-b)/m) in the

expression

f:=((m-b)/m)^2m+b^2*m so that

i obtain

p^m+b^2*m;

When i use algsubs((m-b)/m)=p,f) it does simplify.

Then i use algsubs(m-b=m*p,f) i got p^m+(1-2*p+p^2)*m

i do not want the last part to be expressed in terms of p.

I will appreciate your help and suggestion.

Thanks

Rajiv
 

Hi!

I have a long formula having 6 variables in it of which 2 can be set 'freely', all others have assumed resctrictions to be real and positive. The formula in overall has to produce a real valued result. Is it possible with Maple to find out a formal expression for the 2 'free' parameters where all the assumptions will be met?

Thank you!

I want to disable automatic simplification for certain operation(s), for example, instead of usual response

How would i plot this surface? 7x+22xy+7y+14xz(sqrt(3))+14yz(sqrt(3))-5z=180

I havn't ever used this program before and my teacher didnt teach us how to use it and wants us to use it.  I tried to plot it but dont understand how to.

A favorite diversion of mine (and of many around the Maplesoft office) is xkcd. Its author, Randall Munroe, bills it as “a webcomic of romance, sarcasm, math, and language.” Since 2005, he’s been entertaining many self-proclaimed geeks with his unique and slightly skewed jokes on technology, computer science, mathematics, and relationships.

I really like the post in which a substitute teacher – hm, Mr. Munroe......

Hi there,

B:=Matrix(3,4,[ListTools:-LengthSplit([1,2,3,4,5,6],4)],fill=32);

C:=[seq(i,i=B^%T)];

What's the most efficient way to delete the 'extra' 32s when converting it back?

Thanks.

casper

Hello everybody,

I am happy to join you.

Well... I have an inverted pendulum modelisation, with several theta, theta dot, double dot ...
With Lagrange method, I need to derivate by Theta1(t) dot. However I am unable to do it.

My question is: How to do diff( 5x^2+y,  x^2) ???

The result should be 5.
 

I have I will be able to adapt yours answers to my probelm succesfully.
Many thanks

Ternox
Ps: I use Maple13.

I don't really have anything prepared for today, so I'd like to ask you a few questions about the posts I've made so far.  My goal for this blog was to give typical Maple programmers the information they needed to start trying parallel programming. 

1. My posts progressed fairly quickly, building up to the the Task Programming Model. Did I move too quickly?  Were there topics that I did not explain well enough or that you felt needed more explaination?
2. As my goal was to present the Task Programming Model, I skipped a deeper explaination of Threads:-Create style of programming.    Would you like to know more about that type of low level threaded programming?
3. Most of the examples I used were artifical ones that illustrated the points I was trying to make.  Would you have prefered real world examples instead?
4. Did reading my posts get you to actually try writing a parallel algorithm?  If yes, did you succeed?  If no, why not?
5. Was the formatting ok, especially the code?  Each post included an worksheet containing the examples from the post so I did not worry too much about ease of copy and paste.
6. What else would you like to know about?  I am definitely planning a post on GPU computing, but since it is not really a Maple topic I delayed it till after I am finished with the Maple topics.

Any other feedback you would like to provide would also be appreciated, although I'd like to keep focused on the topics discussed in my blog, and less about Maple in general.

 Download 11608_differential equations.mw
View file details

I use maple sovle an optimality question with hamilton function, but the results are quite different from the given result using matlab. I do not know where I'm wrong ,so can anybody help me ?

Thank you very much!

I am trying to fit the solution from  one nonlinear ode and compare with a set of experimental data. How can I  do this ?.

Thanks in advance... and  any comment will be usefull.

> restart; with(plots); with(plottools);
> mirror := proc (x) options operator, arrow; x^2 end proc; slope := proc (x) options operator, arrow; 2*x end proc; width := .5; height := 1; n := 25;
> mirrorplot := plot(mirror(x), x = -width .. width, y = 0 .. height, axes = NONE, scaling = CONSTRAINED, color = black); display(mirrorplot);

To install in linux do I type:

./installMapleLinux -i console

in the appropriate directory ?

thanks

i am from indonesi..

i using windows vista.. but i can not use maple 9..

what version  compatible for vista???