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### differences between professional and personal Mapl...

13 hours ago
2 3

Could someone explain what are the main (functional) differences between professional and personal Maple editions for 2845$and 299$ respectively?

Tx, Andras

### How to use matrix symbol directly in equation deri...

14 hours ago
3 9

Hi, I hope to use symbol A, B, directly to get C derivation, without using elements forms of matrix, as shown below.

How to achieve this?

Thank you.

17 hours ago
0 1

### error in simplify...

19 hours ago
1 1

> coth;
coth
> restart;
> c := 0;
0
> w := -2*mu;
-2 mu
> a[-1] := 0;
0
> a[0] := mu*lambda*sqrt(-6*a);
(1/2)
mu lambda (-6 a)
> a[1] := (6*(mu*lambda^2+1))/sqrt(-6*a);
/         2    \
6 \mu lambda  + 1/
------------------
(1/2)
(-6 a)
> b[-1] := 0;
0
> b[0] := 0;
0
> b[1] := 0;
0
> xi := x+w*t;
x - 2 mu t
> P := sqrt(-mu)*coth(A+sqrt(-mu)*xi);
(1/2)     /         (1/2)             \
(-mu)      coth\A + (-mu)      (x - 2 mu t)/
> u := a[0]+a[1]*P/(1+lambda*P)+a[-1]*(1+lambda*P)/P+b[0]*sqrt(sigma*(1+P^2/mu))/P+b[1]*sqrt(sigma*(1+P^2/mu))+b[-1]*sqrt(sigma*(1+P^2/mu))/P^2;
(1/2)
mu lambda (-6 a)

/         2    \      (1/2)     /         (1/2)             \
6 \mu lambda  + 1/ (-mu)      coth\A + (-mu)      (x - 2 mu t)/
+ ---------------------------------------------------------------------
(1/2) /                (1/2)     /         (1/2)             \\
(-6 a)      \1 + lambda (-mu)      coth\A + (-mu)      (x - 2 mu t)//
> Diff(u, t)+a*u^2*(Diff(u, x))+Diff(u, \$(x, 3));
/    /
| d  |                (1/2)
|--- |mu lambda (-6 a)
| dt |
\    \

/         2    \      (1/2)     /         (1/2)             \   \\     /
6 \mu lambda  + 1/ (-mu)      coth\A + (-mu)      (x - 2 mu t)/   ||     |
+ ---------------------------------------------------------------------|| + a |mu lambda
(1/2) /                (1/2)     /         (1/2)             \\||     |
(-6 a)      \1 + lambda (-mu)      coth\A + (-mu)      (x - 2 mu t)////     \

(1/2)
(-6 a)

/         2    \      (1/2)     /         (1/2)             \   \
6 \mu lambda  + 1/ (-mu)      coth\A + (-mu)      (x - 2 mu t)/   |
+ ---------------------------------------------------------------------|^2
(1/2) /                (1/2)     /         (1/2)             \\|
(-6 a)      \1 + lambda (-mu)      coth\A + (-mu)      (x - 2 mu t)///

/    /
| d  |                (1/2)
|--- |mu lambda (-6 a)
| dx |
\    \

/         2    \      (1/2)     /         (1/2)             \   \\
6 \mu lambda  + 1/ (-mu)      coth\A + (-mu)      (x - 2 mu t)/   ||
+ ---------------------------------------------------------------------|| +
(1/2) /                (1/2)     /         (1/2)             \\||
(-6 a)      \1 + lambda (-mu)      coth\A + (-mu)      (x - 2 mu t)////

/ 3 /
|d  |                (1/2)
|-- |mu lambda (-6 a)
|   |
\   \

/         2    \      (1/2)     /         (1/2)             \   \\
6 \mu lambda  + 1/ (-mu)      coth\A + (-mu)      (x - 2 mu t)/   ||
+ ---------------------------------------------------------------------||
(1/2) /                (1/2)     /         (1/2)             \\||
(-6 a)      \1 + lambda (-mu)      coth\A + (-mu)      (x - 2 mu t)////
> value(%);
/                                     2\
/         2    \   2 |        /         (1/2)             \ |
12 \mu lambda  + 1/ mu  \1 - coth\A + (-mu)      (x - 2 mu t)/ /
--------------------------------------------------------------------- -
(1/2) /                (1/2)     /         (1/2)             \\
(-6 a)      \1 + lambda (-mu)      coth\A + (-mu)      (x - 2 mu t)//

/
1                                    |
---------------------------------------------------------------------- \12
2
(1/2) /                (1/2)     /         (1/2)             \\
(-6 a)      \1 + lambda (-mu)      coth\A + (-mu)      (x - 2 mu t)//

/
/         2    \      (1/2)     /         (1/2)             \          2 |
\mu lambda  + 1/ (-mu)      coth\A + (-mu)      (x - 2 mu t)/ lambda mu  \1

2\\     /
/         (1/2)             \ ||     |                (1/2)
- coth\A + (-mu)      (x - 2 mu t)/ // + a |mu lambda (-6 a)
|
\

/         2    \      (1/2)     /         (1/2)             \   \
6 \mu lambda  + 1/ (-mu)      coth\A + (-mu)      (x - 2 mu t)/   |
+ ---------------------------------------------------------------------|^2
(1/2) /                (1/2)     /         (1/2)             \\|
(-6 a)      \1 + lambda (-mu)      coth\A + (-mu)      (x - 2 mu t)///

/                           /                                     2\
|       /         2    \    |        /         (1/2)             \ |
|     6 \mu lambda  + 1/ mu \1 - coth\A + (-mu)      (x - 2 mu t)/ /
|- --------------------------------------------------------------------- +
|        (1/2) /                (1/2)     /         (1/2)             \\
|  (-6 a)      \1 + lambda (-mu)      coth\A + (-mu)      (x - 2 mu t)//
\

/
1                                    |  /
---------------------------------------------------------------------- \6 \mu
2
(1/2) /                (1/2)     /         (1/2)             \\
(-6 a)      \1 + lambda (-mu)      coth\A + (-mu)      (x - 2 mu t)//

/
2    \      (1/2)     /         (1/2)             \           |
lambda  + 1/ (-mu)      coth\A + (-mu)      (x - 2 mu t)/ lambda mu \1

\
2\\|
/         (1/2)             \ |||
- coth\A + (-mu)      (x - 2 mu t)/ //|
|
|
/

2
/                                     2\
/         2    \   2 |        /         (1/2)             \ |
12 \mu lambda  + 1/ mu  \1 - coth\A + (-mu)      (x - 2 mu t)/ /
- --------------------------------------------------------------------- +
(1/2) /                (1/2)     /         (1/2)             \\
(-6 a)      \1 + lambda (-mu)      coth\A + (-mu)      (x - 2 mu t)//

/
1                                   |   /
--------------------------------------------------------------------- \24 \mu
(1/2) /                (1/2)     /         (1/2)             \\
(-6 a)      \1 + lambda (-mu)      coth\A + (-mu)      (x - 2 mu t)//

2 /
2    \   2     /         (1/2)             \  |
lambda  + 1/ mu  coth\A + (-mu)      (x - 2 mu t)/  \1

2\\
/         (1/2)             \ ||
- coth\A + (-mu)      (x - 2 mu t)/ // +

/
|
1                                    |
---------------------------------------------------------------------- \84
2
(1/2) /                (1/2)     /         (1/2)             \\
(-6 a)      \1 + lambda (-mu)      coth\A + (-mu)      (x - 2 mu t)//

/         2    \   2     /         (1/2)             \
\mu lambda  + 1/ mu  coth\A + (-mu)      (x - 2 mu t)/

2                  \
/                                     2\                   |
|        /         (1/2)             \ |       (1/2)       |
\1 - coth\A + (-mu)      (x - 2 mu t)/ /  (-mu)      lambda/

3
/                                     2\
/         2    \   3 |        /         (1/2)             \ |        2
36 \mu lambda  + 1/ mu  \1 - coth\A + (-mu)      (x - 2 mu t)/ /  lambda
- ------------------------------------------------------------------------- +
3
(1/2) /                (1/2)     /         (1/2)             \\
(-6 a)      \1 + lambda (-mu)      coth\A + (-mu)      (x - 2 mu t)//

/
|
1                                    |
---------------------------------------------------------------------- \36
4
(1/2) /                (1/2)     /         (1/2)             \\
(-6 a)      \1 + lambda (-mu)      coth\A + (-mu)      (x - 2 mu t)//

/         2    \      (1/2)     /         (1/2)             \       3   3
\mu lambda  + 1/ (-mu)      coth\A + (-mu)      (x - 2 mu t)/ lambda  mu

3\
/                                     2\ |
|        /         (1/2)             \ | |
\1 - coth\A + (-mu)      (x - 2 mu t)/ / / +

/
|
1                                    |
---------------------------------------------------------------------- \72
3
(1/2) /                (1/2)     /         (1/2)             \\
(-6 a)      \1 + lambda (-mu)      coth\A + (-mu)      (x - 2 mu t)//

2
/         2    \   3     /         (1/2)             \        2
\mu lambda  + 1/ mu  coth\A + (-mu)      (x - 2 mu t)/  lambda

2\
/                                     2\ |
|        /         (1/2)             \ | |
\1 - coth\A + (-mu)      (x - 2 mu t)/ / / -

/
1                                    |
---------------------------------------------------------------------- \24
2
(1/2) /                (1/2)     /         (1/2)             \\
(-6 a)      \1 + lambda (-mu)      coth\A + (-mu)      (x - 2 mu t)//

3        /
/         2    \   2     /         (1/2)             \         |
\mu lambda  + 1/ mu  coth\A + (-mu)      (x - 2 mu t)/  lambda \1

2\           \
/         (1/2)             \ |      (1/2)|
- coth\A + (-mu)      (x - 2 mu t)/ / (-mu)     /
> simplify(%);
Error, (in simplify/tools/_zn) too many levels of recursion
>
>
>
>
pls help

### How do I combine pointplot and textplot...

Yesterday at 6:53 PM
1 1