Re: Printing Variables and Their Values
- To: mathgroup at smc.vnet.net
- Subject: [mg46420] Re: [mg46410] Printing Variables and Their Values
- From: Andrzej Kozlowski <akoz at mimuw.edu.pl>
- Date: Tue, 17 Feb 2004 07:05:51 -0500 (EST)
- References: <200402170443.XAA28642@smc.vnet.net>
- Sender: owner-wri-mathgroup at wolfram.com
On 17 Feb 2004, at 05:43, Bruce W. Colletti wrote:
>
> Re Mathematica 5.0.1.
>
> For a list of variables, how would I successively print each variable's
> name followed by its value?
>
> For instance, when x = 7, y = 5 and z = 4, feed list {x,y,z} into
> a function that prints "x = 7, y = 5, z = 4."
>
> Although Print["x = ", x, " y = ", y, " z = ", z] works, I want
> to automate this for any list.
>
> Thanks.
>
> Bruce
>
>
>
The first question is how you want to pass the names of the variables
to your function. I suggest using Hold[variables]. So here is one way
to do this:
VariableValues[l_Hold] := StringReplace[ToString /@
(Flatten[{ReleaseHold[Map[OwnValues, l]]}] /. {HoldPattern ->
HoldForm}),
":>" -> "="]
Let's try your example:
In[2]:=
{x,y,z}={1,2,3};
In[3]:=
VariableValues[Hold[x,y,z]]
Out[3]=
{x = 1,y = 2,z = 3}
Andrzej Kozlowski
Chiba, Japan
http://www.mimuw.edu.pl/~akoz/
- References:
- Printing Variables and Their Values
- From: "Bruce W. Colletti" <bcolletti@compuserve.com>
- Printing Variables and Their Values