There are several lines missing in mathgroup.
- To: mathgroup at smc.vnet.net
- Subject: [mg5279] There are several lines missing in mathgroup.
- From: yokoi at skk.is.tohoku.ac.jp (Yokoi Takahisa)
- Date: Mon, 18 Nov 1996 02:30:28 -0500
- Sender: owner-wri-mathgroup at wolfram.com
Dear administrator.
There are several lines missing in the following mails.
I think that a line start with space (or tab?) causes trouble.
Below is a part of original of my post ([mg5060]):
-----------------------------------------------------------
I'm not sure weather I have fully understood your problem or not.
But try "Module[ { u, t }, ..."
instead of "Module[ { u[t] }, ...".
Just as,
====================================================
In[25]:=
Module[ { u[t] },
u[t] = 55;
u[t] += 100
]
Module::lvsym:
Local variable specification {u[t]} contains u[t]
which is not a symbol or an assignment to a symbol.
Out[25]=
Module[{u[t]}, u[t] = 55; u[t] += 100]
In[26]:=
Module[ { u, t },
u[t] = 55;
u[t] += 100
]
Out[26]=
155
-----------------------------------------------------------
but in delivered mail of mathgroup, this part becomes
-----------------------------------------------------------
I'm not sure weather I have fully understood your problem or not.
But try "Module[ { u, t }, ..."
instead of "Module[ { u[t] }, ...".
Just as,
====================================================
In[25]:=
Out[25]=
In[26]:=
Out[26]=
====================================================
-----------------------------------------------------------
In the case of Tatsuki's [mg5200],
-----------------------------------------------------------
"Tomasz B." wrote in article "[mg5137] simplify problem"
> How can I revers the above Operation, in this example from
> a^2+2ab+b^2+c^2+2cd+d^2
> I want to have (a+b)^2 + (c+d)^2.
You can use a replace repeated operator "//." as
a^2 + 2 a b + b^2 + c^2 + 2 c d + d^2 //.
x_^2 + 2 x_ y_ + y_^2 -> (x + y)^2
try it!
-----------------------------------------------------------
A line disappear "x_^2 + 2 x_ y_ + y_^2 -> (x + y)^2" as follows
-----------------------------------------------------------
"Tomasz B." wrote in article "[mg5137] simplify problem"
> How can I revers the above Operation, in this example from
> a^2+2ab+b^2+c^2+2cd+d^2
> I want to have (a+b)^2 + (c+d)^2.
You can use a replace repeated operator "//." as
a^2 + 2 a b + b^2 + c^2 + 2 c d + d^2 //.
try it!
-----------------------------------------------------------
I hope you will fix this problem.
The letters posted to
are pretty good.
Sincerely.
* Yokoi Takahisa <yokoi at skk.is.tohoku.ac.jp>
** Graduate School of Information Science,
*** Tohoku Univ. <Tonpei>, Sendai, Japan