Re: problem displaying angstrom symbol

2014-05-09 Thread Guenter Milde
On 2014-05-06, Jens Nöckel wrote:

 On May 6, 2014, at 8:45 AM, Ider Ronneberger wrote:

 Hi,

 I have a problem in lyx displaying the angstom symbol using \AA within
 the math mode, i.e. if I want to view the document as pdf the angstrom
 sign is not there. However it works if I write \AA in Tex mode or
 insert it from InsertSpecial Charecters Symbols...

 On the bottom pane of the lyx display, there is a short info message.
 In one case it says Type: simple Macro:AA and in the other case (
 which works) it just says Type: simple. What is the difference? How
 can resolve this issue?

 The problem is that \AA is a text mode command, not meant for equation
 environments. In LyX, I get the correct output if I enter the Å symbol
 from the keyboard (shift-option-A on the Mac). In an equation, LyX then
 replaces that symbol by \mathring{A}, which displays properly in the
 PDF output. So you could alternatively also enter \mathring{A} in the
 LyX math editor.

Depending on what it should stand for, the correct approach is to nest it in
a text box or use \mathring{A} instead of \AA:

  \mathring{A} is usually printed in italics, it stands for a variable
  (just like x and y).
  
  \mathrm{\AA} or \text{AA} are usually printed upright (roman) and stand
  for a constant or the length unit Ångström (10 nm).
  
  All SI units (and also most non-SI units) should be written upright.
  This is also often done wrong for the micro prefix µ.
  
Günter  
  



Re: problem displaying angstrom symbol

2014-05-09 Thread Guenter Milde
On 2014-05-06, Jens Nöckel wrote:

 On May 6, 2014, at 8:45 AM, Ider Ronneberger wrote:

 Hi,

 I have a problem in lyx displaying the angstom symbol using \AA within
 the math mode, i.e. if I want to view the document as pdf the angstrom
 sign is not there. However it works if I write \AA in Tex mode or
 insert it from InsertSpecial Charecters Symbols...

 On the bottom pane of the lyx display, there is a short info message.
 In one case it says Type: simple Macro:AA and in the other case (
 which works) it just says Type: simple. What is the difference? How
 can resolve this issue?

 The problem is that \AA is a text mode command, not meant for equation
 environments. In LyX, I get the correct output if I enter the Å symbol
 from the keyboard (shift-option-A on the Mac). In an equation, LyX then
 replaces that symbol by \mathring{A}, which displays properly in the
 PDF output. So you could alternatively also enter \mathring{A} in the
 LyX math editor.

Depending on what it should stand for, the correct approach is to nest it in
a text box or use \mathring{A} instead of \AA:

  \mathring{A} is usually printed in italics, it stands for a variable
  (just like x and y).
  
  \mathrm{\AA} or \text{AA} are usually printed upright (roman) and stand
  for a constant or the length unit Ångström (10 nm).
  
  All SI units (and also most non-SI units) should be written upright.
  This is also often done wrong for the micro prefix µ.
  
Günter  
  



Re: problem displaying angstrom symbol

2014-05-09 Thread Guenter Milde
On 2014-05-06, Jens Nöckel wrote:

> On May 6, 2014, at 8:45 AM, Ider Ronneberger wrote:

>> Hi,

>> I have a problem in lyx displaying the angstom symbol using \AA within
>> the math mode, i.e. if I want to view the document as pdf the angstrom
>> sign is not there. However it works if I write \AA in Tex mode or
>> insert it from Insert>Special Charecters> Symbols...

>> On the bottom pane of the lyx display, there is a short info message.
>> In one case it says "Type: simple Macro:AA" and in the other case (
>> which works) it just says "Type: simple". What is the difference? How
>> can resolve this issue?

> The problem is that \AA is a text mode command, not meant for equation
> environments. In LyX, I get the correct output if I enter the Å symbol
> from the keyboard (shift-option-A on the Mac). In an equation, LyX then
> replaces that symbol by \mathring{A}, which displays properly in the
> PDF output. So you could alternatively also enter \mathring{A} in the
> LyX math editor.

Depending on what it should stand for, the correct approach is to nest it in
a text box or use \mathring{A} instead of \AA:

  \mathring{A} is usually printed in italics, it stands for a variable
  (just like x and y).
  
  \mathrm{\AA} or \text{AA} are usually printed upright (roman) and stand
  for a constant or the length unit Ångström (10 nm).
  
  All SI units (and also most non-SI units) should be written upright.
  This is also often done wrong for the micro prefix µ.
  
Günter  
  



problem displaying angstrom symbol

2014-05-06 Thread Ider Ronneberger

Hi,

I have a problem in lyx displaying the angstom symbol using \AA within 
the math mode, i.e. if I want to view the document as pdf the angstrom 
sign is not there. However it works if I write \AA in Tex mode or insert 
it from InsertSpecial Charecters Symbols...


On the bottom pane of the lyx display, there is a short info message. In 
one case it says Type: simple Macro:AA  and in the other case ( which 
works)   it just says Type: simple. What is the difference? How can 
resolve this issue?


Thanks in advance!

Ider


Re: problem displaying angstrom symbol

2014-05-06 Thread Jens Nöckel

On May 6, 2014, at 8:45 AM, Ider Ronneberger wrote:

 Hi,
 
 I have a problem in lyx displaying the angstom symbol using \AA within the 
 math mode, i.e. if I want to view the document as pdf the angstrom sign is 
 not there. However it works if I write \AA in Tex mode or insert it from 
 InsertSpecial Charecters Symbols...
 
 On the bottom pane of the lyx display, there is a short info message. In one 
 case it says Type: simple Macro:AA  and in the other case ( which works)   
 it just says Type: simple. What is the difference? How can resolve this 
 issue?
 
 Thanks in advance!
 
 Ider

The problem is that \AA is a text mode command, not meant for equation 
environments. In LyX, I get the correct output if I enter the Å symbol from the 
keyboard (shift-option-A on the Mac). In an equation, LyX then replaces that 
symbol by \mathring{A}, which displays properly in the PDF output. So you could 
alternatively also enter \mathring{A} in the LyX math editor. 



problem displaying angstrom symbol

2014-05-06 Thread Ider Ronneberger

Hi,

I have a problem in lyx displaying the angstom symbol using \AA within 
the math mode, i.e. if I want to view the document as pdf the angstrom 
sign is not there. However it works if I write \AA in Tex mode or insert 
it from InsertSpecial Charecters Symbols...


On the bottom pane of the lyx display, there is a short info message. In 
one case it says Type: simple Macro:AA  and in the other case ( which 
works)   it just says Type: simple. What is the difference? How can 
resolve this issue?


Thanks in advance!

Ider


Re: problem displaying angstrom symbol

2014-05-06 Thread Jens Nöckel

On May 6, 2014, at 8:45 AM, Ider Ronneberger wrote:

 Hi,
 
 I have a problem in lyx displaying the angstom symbol using \AA within the 
 math mode, i.e. if I want to view the document as pdf the angstrom sign is 
 not there. However it works if I write \AA in Tex mode or insert it from 
 InsertSpecial Charecters Symbols...
 
 On the bottom pane of the lyx display, there is a short info message. In one 
 case it says Type: simple Macro:AA  and in the other case ( which works)   
 it just says Type: simple. What is the difference? How can resolve this 
 issue?
 
 Thanks in advance!
 
 Ider

The problem is that \AA is a text mode command, not meant for equation 
environments. In LyX, I get the correct output if I enter the Å symbol from the 
keyboard (shift-option-A on the Mac). In an equation, LyX then replaces that 
symbol by \mathring{A}, which displays properly in the PDF output. So you could 
alternatively also enter \mathring{A} in the LyX math editor. 



problem displaying angstrom symbol

2014-05-06 Thread Ider Ronneberger

Hi,

I have a problem in lyx displaying the angstom symbol using \AA within 
the math mode, i.e. if I want to view the document as pdf the angstrom 
sign is not there. However it works if I write \AA in Tex mode or insert 
it from Insert>Special Charecters> Symbols...


On the bottom pane of the lyx display, there is a short info message. In 
one case it says "Type: simple Macro:AA"  and in the other case ( which 
works)   it just says "Type: simple". What is the difference? How can 
resolve this issue?


Thanks in advance!

Ider


Re: problem displaying angstrom symbol

2014-05-06 Thread Jens Nöckel

On May 6, 2014, at 8:45 AM, Ider Ronneberger wrote:

> Hi,
> 
> I have a problem in lyx displaying the angstom symbol using \AA within the 
> math mode, i.e. if I want to view the document as pdf the angstrom sign is 
> not there. However it works if I write \AA in Tex mode or insert it from 
> Insert>Special Charecters> Symbols...
> 
> On the bottom pane of the lyx display, there is a short info message. In one 
> case it says "Type: simple Macro:AA"  and in the other case ( which works)   
> it just says "Type: simple". What is the difference? How can resolve this 
> issue?
> 
> Thanks in advance!
> 
> Ider

The problem is that \AA is a text mode command, not meant for equation 
environments. In LyX, I get the correct output if I enter the Å symbol from the 
keyboard (shift-option-A on the Mac). In an equation, LyX then replaces that 
symbol by \mathring{A}, which displays properly in the PDF output. So you could 
alternatively also enter \mathring{A} in the LyX math editor.