Hello Rolf,

Thank you for the response.

I tried your command but it did not work.
 plot(1:10,ylab="y",xlab=**expression(plain(km)^2))

Please kindly advise any other method to make "2" in km2 become a uppercase
number.
Thanks again.

Elaine


On Tue, Feb 21, 2012 at 8:24 AM, Rolf Turner <rolf.turner@xtra.co.nz> wrote:

> On 21/02/12 12:54, Elaine Kuo wrote:
>
>> Hello,
>>
>> This is Elaine.
>>
>> I am drawing a plot with x-axis label with "km square" as the unit.
>> Now I want to print km square in the form of km2 and output "2" as the
>> uppercase.
>> Please kindly help suggest command to show the uppercase.
>>
>
> When you say "as [the] uppercase" I *think* you mean "as a
> superscript".  Assuming that I am correct in my supposition,
> you can achieve what you want via the syntax shown in the
> following example:
>
>    plot(1:10,ylab="y",xlab=**expression(plain(km)^2))
>
> For details on how you do this sort of thing in general see:
>
>    ?plotmath
>
> Be warned --- it's tricky!  I find that I always need to experiment
> quite a lot before I get it right.  Experimentation is cheap, but.
>
> HTH
>
>    cheers,
>
>        Rolf Turner
>

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