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May 3, 2009, 11:11:39 AM5/3/09

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Hello,

I'm using the \intercal symbol for transposition, but it is typeset a

bit too low. Is there an equivalent of \raisebox in math mode? Using

something like x^{\raisebox{0.25ex}{$\intercal$}} does not e.g. use

superscript size.

Thanks,

J.

May 3, 2009, 11:22:04 AM5/3/09

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I stuck in an extra \scriptsize and it works fine. But is there

something more elegant?

May 3, 2009, 11:52:04 AM5/3/09

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Joris <pin...@gmail.com> wrote:

I don't find \intercal particularly pleasing in that context; maybe

\mathsf{T} would do better; the standard method to avoid explicit

math style declarations is

\newcommand\T{{\mathpalette\raiseT\intercal}}

\newcommand\raiseT[2]{\raisebox{0.25ex}{$#1#2$}}

$x^\T$

Ciao

Enrico

May 3, 2009, 12:57:47 PM5/3/09

to

That works, thanks. And I learned \mathpalette; very useful!

May 4, 2009, 2:39:59 PM5/4/09

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On Sun, 3 May 2009 08:11:39 -0700 (PDT), Joris <pin...@gmail.com>

wrote:

wrote:

\intercal is a binary operator, and its vertical position

is designed for that use. If you want to use something

to denote transposition, choose some form of T. In a

pinch, \top also looks very T-like and is certainly

higher than \intercal.

$A^{\mathsf{T}}$ also works fine and looks more like

what you seem to want.

Personally, I use a $A^T$ in my linear algebra course

because that's what the textbook uses, and I have no

problem with it. In my papers I prefer $A^t$ because

that is what I was raised on, and editors don't seem to

care.

Dan

To reply by email, change LookInSig to luecking

May 4, 2009, 3:11:52 PM5/4/09

to

Probably the amount to raise should depend on the style.

In practice, the difference is barely visible (except

in nonscript usage $\T$).

I would start by raising it by its depth. This could be

measured automatically or, for simplicity, just measure

them and hard code the values (converted to ex in case

font size is not 10pt):

Hard coded:

\newcommand\T{%

{\mathchoice

{\raisebox{.45ex}{$\displaystyle{\intercal}$}}

{\raisebox{.45ex}{$\textstyle{\intercal}$}}

{\raisebox{.30ex}{$\scriptstyle{\intercal}$}}

{\raisebox{.23ex}{$\scriptscriptstyle{\intercal}$}}}

}

Automatic:

\newcommand\T{{\mathpalette\raiseT\intercal}}

\newcommand\raiseT[2]{%

\setbox0\hbox{$#1{#2}$}\raise\dp0\box0}

>$x^\T$

May 4, 2009, 3:21:48 PM5/4/09

to

Dan Luecking <Look...@uark.edu> wrote:

> On Sun, 3 May 2009 08:11:39 -0700 (PDT), Joris <pin...@gmail.com>

> wrote:

>

> >Hello,

> >

> >I'm using the \intercal symbol for transposition, but it is typeset a

> >bit too low. Is there an equivalent of \raisebox in math mode? Using

> >something like x^{\raisebox{0.25ex}{$\intercal$}} does not e.g. use

> >superscript size.

>

> \intercal is a binary operator, and its vertical position

> is designed for that use. If you want to use something

> to denote transposition, choose some form of T. In a

> pinch, \top also looks very T-like and is certainly

> higher than \intercal.

>

> $A^{\mathsf{T}}$ also works fine and looks more like

> what you seem to want.

That's exactly what I suggested in the first place. The \intercal

symbol has rounded bars which are not suitable for that meaning.

> Personally, I use a $A^T$ in my linear algebra course

> because that's what the textbook uses, and I have no

> problem with it. In my papers I prefer $A^t$ because

> that is what I was raised on, and editors don't seem to

> care.

The only problem with $...^T$ is that with some letters it comes too

far from them; a simple $...^{\!T}$ is usually sufficient.

Ciao

Enrico

May 4, 2009, 5:19:17 PM5/4/09

to

On May 4, 3:21 pm, Enrico Gregorio <grego...@math.unipd.it> wrote:

Thank you and Dan for your responses. The reason I don't want to use

T or t (or prime) for transposition is that those symbols have another

meaning in the paper. Thanks for pointing out the issues with

\intercal. It looks fine now, but I'll try \top, also.

Best,

J.

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