Re: How to use HoldForm within Module
- To: mathgroup at smc.vnet.net
- Subject: [mg15273] Re: [mg15259] How to use HoldForm within Module
- From: Ken Levasseur <Kenneth_Levasseur at uml.edu>
- Date: Thu, 31 Dec 1998 04:39:29 -0500
- Organization: UMass Lowell Mathematical Sciences
- References: <199812300650.BAA24661@smc.vnet.net.>
- Sender: owner-wri-mathgroup at wolfram.com
Chee:
In addition to your definition of doNOTCHANGE, if you add HoldFirst (or
HoldAll) to the Attributes of doNOTCHANGE, you should get what you
want.
You set the attributes this way:
Attributes[doNOTCHANGE]={HoldFirst}
Ken Levasseur
Math. Sci. UMass Lowell
Chee Lim Cheung wrote:
>
> Hello Mathematica gurus,
>
> I am new to Mathematica. I need to use a function in its original form
> within Module.
>
> e.g.,doNOTCHANGE[f_]:=Module[{g},g=HoldForm[f];Print[g]]
>
> may not give what I want as f is already rearranged according to
> Mathematica's lexicographical order within Module,i.e.,HoldForm[f] in
> Module may not be exactly of the same form as f as defined. One example
> is f=-1(UnitStep[t-1]-UnitStep[t-2]).Can any of you out there show me
> the way to get f in its original form inside Module?
>
> Thanks
> Chee
- References:
- How to use HoldForm within Module
- From: "Chee Lim Cheung" <cheelc@mbox2.singnet.com.sg>
- How to use HoldForm within Module