Re: how to tell Mathematica to display x^-1 as x^-1 and not as
- To: mathgroup at smc.vnet.net
- Subject: [mg110743] Re: how to tell Mathematica to display x^-1 as x^-1 and not as
- From: Albert Retey <awnl at gmx-topmail.de>
- Date: Sun, 4 Jul 2010 03:10:02 -0400 (EDT)
- References: <i0n9t5$hr6$1@smc.vnet.net>
Am 03.07.2010 14:19, schrieb Nasser M. Abbasi:
> Hello;
>
>
> When I type
>
> x^-1
>
> Mathematica replies
>
> 1/x
>
> Is there a way to tell Mathematica to *display* terms with negative
> powers as x^-n and not as 1/x^n ? (i.e keep the term just like it
> would appear on paper).
>
> Another example, suppose I type
>
> expr = a*x^-2 + b *x^-1 +
>
> The reason I want to do this, is just for display purposes. When I print
> the expression on the screen, I'd like it to look like x^-1 and not like
> 1/x (to better match how the expression look like in the textbook)
>
> I am trying to avoid having to convert everything to a string, and force
> the form to the way I want. I tried Hold functions, and
> TraditionalForm, but can't get it to print as I want.
>
> I am hoping there is an easy trick to do this?
for this special case you could use the following:
expr /. Power[x, n_?Negative] :> Row[{x, "^", n}]
it should be fairly easy to adopt to other or more general cases.
hth,
albert