I have two expression like,

exp1:=A1*x*(k-p*x)+A2*x+A3*p+A4

exp2:=A5*x*(k-p*x)

where A1, A2, A3, A4 and A5 are some lengthy expressions.

I need to find the division of these two, namely exp3

exp3:=exp1/exp2

in the form

exp3:=(A1/A5)+the rest

In other words, I need to extract the part which could be normalized by x*(k-p*x).

I need to know how to use Maple to solve group permutaions and Cayley tables

I wanted that the same X-axe represents 1-10, 100-110 and 500-510. I do not know if it is possible to have a kind of X-values that in the same graph shows  the Y-values for the 32 following points: 1,2,..9,10,100,101,..110,500, 501,502,..., 510 . If I consider all interval 1-510, I could not be able to apreciate the graphic.

Thanks for your attention Kirnyk.

Jean-Jacques

I'm trying to understand shooting method using maple in solving BVP. especially to solve boundary layer flow. I don't have any idea about the step size used and convergence criteria specified in shoot lib in the maple. Can anybody help me with this? Where can I refer to. Thank you

Could you give examples of differentiate differential form or integrate differential form using maple?

A friend asked me if Maple can do the following integral, since Mathematica just spins for an indefinite time with it:

int (  (1/sqrt(2*Pi))*(1/(1+exp(x)))*exp(-(1/2)*((x-a)/b)^2) ) from -infinity to infinity

Interesting integral though!

Dear friends,

The commands below generates a graphic. Hower I would like two things:

1. That the Y values are from 0 to 0.7 (in the example before it goes --by default--only until 0.5).

2. To represent in the X-axe the values from from 1-10, 100-110 and 500-510. I do mean, axe-X excluding 11 to 99, 111 to 499.

Here the commands:

restart:
ww:= [seq( [n, add(1/(n+1), k=ceil(1/3*n)..floor(2/3*n))], n=1..10)]:
plot(ww, style=point):

I have 2 sets of nonlinear motion equation for double pendulum problem. I wonder how can I solve these second order nonlinear equations first and second how can I extract the state space model for this system.

Thanks in advance

I have a DLL which contains many function for the 1997 IASM steam tables.

As an example (in SI units)

> dllloc := "c:/Windows/system/astemdll.dll";
                      "c:/Windows/system/astemdll.dll"
> psat := define_external(psat97mc, FORTRAN, arg1::(float[8]), RETURN::(float[8]), LIB = dllloc);
> b := psat(647.096);
   ...

Version: Maple 7

How can I acheive the following?

Pseudo-maple, this is what I want to happen.
> f:=modp(x,2);
> subs(x=3, f);
(output) 1

The problem is that the first line echoes "f:=x" and then subs(x=3,f); outputs 3.

In a similar way, I get the following unexpected result,
> f2 := 0.5 < floor( modp(floor(y/17)* 2^(-17*floor(x)-modp(floor(y),17)) ,2) );
(output) f2 := .5 < 0

For some reason the RHS of...

This is an equation:T*s^3+s^2+K=0,where T>0,K>0, s is complex variable. I have known that one of its roots has real part, and this real part is independent of T and K. I don't know how can I use maple to illustrate this conclusion, can you give me some advices? I try to use solve command, but the result is very chaotic.

Thank you in advance.

I want to produce a list with oder by total degree, of monomials in several variables

i.e. {1, x, y, x^2, y^2, xy} would be the list or all monomials in the variables x and y with total degree <=2,

currently i can produce a list using a loop command that gives me the set

U:=(seq(seq((x^n)*(y^m), n=0..2),m=0..2));

which returns the list

U=1, x, x^2, y, xy, x^2y, y^2, xy^2, x^2y^2

which has terms that i do not require i.e. ...

Here is my code , could you please tell me where i'm going wrong... isn't plotting anything

Fern :=proc(n);
local pick,n;
n := NULL;
for n from 1 to n do 
pick := rand();
if pick < 0.01 then
x[n+1] := 0;
y[n+1] := 0.16*y[n];

else if pick < 0.01 + 0.85 then
x[n+1] := 0.85*x[n] + 0.04*y[n] + 0;
y[n+1] := -0.04*x[n] + 0.85*y[n] + 1.6;
else if pick < 0.01 + 0.85 + 0.07 then
x[n+1] := 0.2*x[n] - 0.26*y[n] + 0;
y[n+1] := 0.23*x[n] + 0.22*y[n] + 1.6;

Hi

In a particular calculation I kepp getting (erratically) the error message,

Error, (in sqrfree) argument must be a polynomial or a rational function in lam

I don't...

My school deployed the application for examination purposes, got this app installed on a server and deployed. but question is this

1. when a student logs in with his or her id and click on the assignment link from a client system connected to the server and start attempting the assignment, at a time the question will stop responding, responding in the sense that one will not be able to next or back the question. and if such student close the assignment page and logs...