# [R] Perpendicular symbol in plotmath?

Matthew Neilson matt at gneilson.plus.com
Sun Apr 29 00:44:15 CEST 2007

Thanks for your response, Gabor.

That works quite nicely. The documentation states that it is not possible to mix and match Hershey fonts with plotmath symbols. My *ideal* scenario would be to write the
perpendicular symbol as a subscript (specifically, I would like to have " \epsilon_{\perp} " as an axis label).

I have searched the help archive, and it turned up the following post from 2002:

http://tinyurl.com/2m8n9c

which explains a way of "faking" subscripts when using the Hershey fonts, though it does have several drawbacks. Have things moved on in the last five years, or is this still the best
known solution?

-Matt

On Sat Apr 28 17:35 , 'Gabor Grothendieck' <ggrothendieck at gmail.com> sent:

>Its available in the Hershey fonts:
>
>plot(0, 0, type = "n")
>text(0, 0, "A \\pp B", vfont = c("serif", "plain"))
>
>
>On 4/28/07, Matthew Neilson matt at gneilson.plus.com> wrote:
>> Hey,
>>
>> Does anyone know of an equivalent to the LaTeX \perp (perpendicular)
>> symbol for adding to R plots? Parallel is easy enough ("||"), but I
>> haven't been
>> able to find a way of adding perpendicular. The plotmath documentation
>> doesn't mention how to do it, so I'm inclined to think that it doesn't
>> exist - but surely there must be some way of achieving the desired
>> result,
>> right?
>>
>> Any help will be much appreciated,
>>
>>
>> -Matt
>>
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