RE: Entering constant placeholders
- To: mathgroup at smc.vnet.net
- Subject: [mg32351] RE: [mg32328] Entering constant placeholders
- From: "Higinio Ramos" <higra at usal.es>
- Date: Wed, 16 Jan 2002 03:30:02 -0500 (EST)
- References: <200201150730.CAA04534@smc.vnet.net>
- Reply-to: "Higinio Ramos" <higra at usal.es>
- Sender: owner-wri-mathgroup at wolfram.com
In[3]:=Dt[a x^3 + b x^2 + c x + d, x, Constants -> {a, b, c, d}]
Out[3]=\!\(c + 2\ b\ x + 3\ a\ x\^2\)
Higinio
----- Original Message -----
From: progman <dglfl at home.com>
To: mathgroup at smc.vnet.net
Subject: [mg32351] [mg32328] Entering constant placeholders
> I can't seem to make this work. When I enter the following, I get these
> errors:
>
> SetAttributes[a,b,c, Constant]
>
> Syntax::tsntxi: "SetAttributes a,constant" is incomplete; more input is
> needed.
>
> d(ax^3 + bx^2 + cx + d)/dx
>
> The answer should be 3ax^2+2bx+c . I can't figure out how to tell
> mathematica that a,b, & c are constants.
>
>
>
> Thanks
>
- References:
- Entering constant placeholders
- From: "progman" <dglfl@home.com>
- Entering constant placeholders