Re: new operators in LyX?
On 2017-02-24, Bernt Lie wrote:
> From: lyx-users@lists.lyx.org [mailto:lyx-users@lists.lyx.org] On Behalf Of
> Jean-Marc Lasgouttes
> Le 24/02/2017 à 16:07, Bernt Lie a écrit :
>> I need to typeset the signum function as an operator. I have tried to
>> insert "\mathop{sgn}", but this gives "sgn" in italic, and not in
>> roman as it should.
> The right command is operatorname, I think. LyX is not yet able to
> display it properly , though.
You can define a math-macro with \operatorname{sgn} in the TeX definition
and sgn in upright roman font in the LyX definition.
Günter
RE: new operators in LyX?
-Original Message-
From: lyx-users@lists.lyx.org [mailto:lyx-users@lists.lyx.org] On Behalf Of
Jean-Marc Lasgouttes
Sent: fredag 24. februar 2017 16.35
To: lyx-users@lists.lyx.org
Subject: Re: new operators in LyX?
Le 24/02/2017 à 16:07, Bernt Lie a écrit :
> I use LyX 2.2 on Win10.
>
> I need to typeset the signum function as an operator. I have tried to insert
> "\mathop{sgn}", but this gives "sgn" in italic, and not in roman as it should.
The right command is operatorname, I think. LyX is not yet able to display it
properly , though.
Jmarc
--
On "operatorname" -- this is somewhat fragile, I guess. I assume I have
AMSMath. If I do the following in math or display math...: type "\operatorname"
followed by an opening brace "{", LyX adds the closing brace. Then type the
operator name inside of the braces to have "\operatorname{sgn}" where the
cursor now is just after the "n" and before the closing brace. Then hit "space"
to move out of the brace. The math still looks like "\operatorname{sgn}".
However, if I go out of the math/display math *and* have set up LyX with math
preview, then it looks ok. But a slightest mistake causes an erroneous
preview...
-B
-B
RE: new operators in LyX?
-Original Message-
From: lyx-users@lists.lyx.org [mailto:lyx-users@lists.lyx.org] On Behalf Of
Jean-Marc Lasgouttes
Sent: fredag 24. februar 2017 16.35
To: lyx-users@lists.lyx.org
Subject: Re: new operators in LyX?
Le 24/02/2017 à 16:07, Bernt Lie a écrit :
> I use LyX 2.2 on Win10.
>
> I need to typeset the signum function as an operator. I have tried to insert
> "\mathop{sgn}", but this gives "sgn" in italic, and not in roman as it should.
The right command is operatorname, I think. LyX is not yet able to display it
properly , though.
Jmarc
---
Yes, that works. At least in preview...
Thanks.
-Bernt
Re: new operators in LyX?
Le 24/02/2017 à 16:07, Bernt Lie a écrit :
I use LyX 2.2 on Win10.
I need to typeset the signum function as an operator. I have tried to insert
"\mathop{sgn}", but this gives "sgn" in italic, and not in roman as it should.
The right command is operatorname, I think. LyX is not yet able to
display it properly , though.
JMarc
RE: new operators in LyX?
-Original Message-
From: lyx-users@lists.lyx.org [mailto:lyx-users@lists.lyx.org] On Behalf Of
David L. Johnson
Sent: fredag 24. februar 2017 16.20
To: lyx-users@lists.lyx.org
Subject: Re: new operators in LyX?
On 02/24/2017 10:07 AM, Bernt Lie wrote:
> I use LyX 2.2 on Win10.
>
> I need to typeset the signum function as an operator. I have tried to insert
> "\mathop{sgn}", but this gives "sgn" in italic, and not in roman as it should.
>
> Is there a syntax for this?
>
> -Bernt
\rm{sgn} ??
--
David L. Johnson
Department of Mathematics
Lehigh University
--
...or \mathrm ? But this gives "wrong" distance in the expressions, I think.
-Bernt
RE: new operators in LyX?
From: lyx-users@lists.lyx.org [mailto:lyx-users@lists.lyx.org] On Behalf Of
Paul A. Rubin
Sent: fredag 24. februar 2017 16.28
To: lyx-users@lists.lyx.org
Subject: Re: new operators in LyX?
On 02/24/2017 10:07 AM, Bernt Lie wrote:
I use LyX 2.2 on Win10.
I need to typeset the signum function as an operator. I have tried to insert
"\mathop{sgn}", but this gives "sgn" in italic, and not in roman as it should.
Is there a syntax for this?
-Bernt
Assuming that you are loading AMSMath, try adding
\DeclareMathOperator{\sgn}{sgn} to the document preamble and then use \sgn in
math insets.
Paul
--
I’m pretty sure that I managed to do it without changing the preamble a few
days ago, but I cannot remember what command I used...
-Bernt
Re: new operators in LyX?
On 02/24/2017 10:07 AM, Bernt Lie wrote:
I use LyX 2.2 on Win10.
I need to typeset the signum function as an operator. I have tried to insert
"\mathop{sgn}", but this gives "sgn" in italic, and not in roman as it should.
Is there a syntax for this?
-Bernt
Assuming that you are loading AMSMath, try adding
\DeclareMathOperator{\sgn}{sgn} to the document preamble and then use
\sgn in math insets.
Paul
Re: new operators in LyX?
On 02/24/2017 10:07 AM, Bernt Lie wrote:
I use LyX 2.2 on Win10.
I need to typeset the signum function as an operator. I have tried to insert
"\mathop{sgn}", but this gives "sgn" in italic, and not in roman as it should.
Is there a syntax for this?
-Bernt
\rm{sgn} ??
--
David L. Johnson
Department of Mathematics
Lehigh University
new operators in LyX?
I use LyX 2.2 on Win10.
I need to typeset the signum function as an operator. I have tried to insert
"\mathop{sgn}", but this gives "sgn" in italic, and not in roman as it should.
Is there a syntax for this?
-Bernt
