Re: [NTG-context] Nabla operator appears italic in formula
On 3/23/2013 9:34 PM, Xenia wrote:
Dear context list,
using the nabla symbol ∇ in formulas, I wondered why it looks italic and
not upright as for example in [1].
I attach an example.
Because that's how it's defined in math italics ... is nabla always
supposed to be upright in standard math italic mode?
(I'll change the \nable definition to \unexpanded\def\nabla{∇}.)
Hans
-
Hans Hagen | PRAGMA ADE
Ridderstraat 27 | 8061 GH Hasselt | The Netherlands
tel: 038 477 53 69 | voip: 087 875 68 74 | www.pragma-ade.com
| www.pragma-pod.nl
-
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Re: [NTG-context] Nabla operator appears italic in formula
On 24 mars 2013, at 11:24, Hans Hagen pra...@wxs.nl wrote:
On 3/23/2013 9:34 PM, Xenia wrote:
Dear context list,
using the nabla symbol ∇ in formulas, I wondered why it looks italic and
not upright as for example in [1].
I attach an example.
Because that's how it's defined in math italics ... is nabla always supposed
to be upright in standard math italic mode?
(I'll change the \nable definition to \unexpanded\def\nabla{∇}.)
Hans
Hi,
\nabla should be italic if all other math greek symbols, like \Omega, \Gamma,
\sum, ect are set in italic. Otherwise \nabla and all such symbols should be
upright.
Would it be possible to make this optional in math italics, something like
\setupmathematics[mathsymbols=italic]
or
\setupmathematics[mathsymbols=upright]
Maybe this should be set when one chooses the greek letters to be italic or
upright in mathematics.
Best regards: OK
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Re: [NTG-context] Nabla operator appears italic in formula
On 3/24/2013 12:23 PM, Otared Kavian wrote:
On 24 mars 2013, at 11:24, Hans Hagen pra...@wxs.nl wrote:
On 3/23/2013 9:34 PM, Xenia wrote:
Dear context list,
using the nabla symbol ∇ in formulas, I wondered why it looks italic and
not upright as for example in [1].
I attach an example.
Because that's how it's defined in math italics ... is nabla always supposed to
be upright in standard math italic mode?
(I'll change the \nable definition to \unexpanded\def\nabla{∇}.)
Hans
Hi,
\nabla should be italic if all other math greek symbols, like \Omega, \Gamma,
\sum, ect are set in italic. Otherwise \nabla and all such symbols should be
upright.
Would it be possible to make this optional in math italics, something like
\setupmathematics[mathsymbols=italic]
or
\setupmathematics[mathsymbols=upright]
Maybe this should be set when one chooses the greek letters to be italic or
upright in mathematics.
That is already there
\setupmathematics
[lcgreek=italic,
ucgreek=normal]
(normal, italic, none)
I've added sygreek so that one can also influence the nable and
differential (default normal). I tested with:
\starttext
\startTEXpage
\startlines
\type{--}: \mathematics{\nabla \phi = ∇ ϕ = 0}
\type{it}: \mathematics{\it \nabla \phi = ∇ ϕ = 0}
\type{bf}: \mathematics{\bf \nabla \phi = ∇ ϕ = 0}
\type{bi}: \mathematics{\bi \nabla \phi = ∇ ϕ = 0}
\type{tf}: \mathematics{\tf \nabla \phi = ∇ ϕ = 0}
\blank
\type{--}: \mathematics{\mathgreekupright \nabla \phi =
∇ ϕ = 0}
\type{it}: \mathematics{\it \mathgreekupright \nabla \phi =
∇ ϕ = 0}
\type{bf}: \mathematics{\bf \mathgreekupright \nabla \phi =
∇ ϕ = 0}
\type{bi}: \mathematics{\bi \mathgreekupright \nabla \phi =
∇ ϕ = 0}
\type{tf}: \mathematics{\tf \mathgreekupright \nabla \phi =
∇ ϕ = 0}
\blank
\setupmathematics[sygreek=italic]
\type{--}: \mathematics{\nabla \phi = ∇ ϕ = 0}
\type{it}: \mathematics{\it \nabla \phi = ∇ ϕ = 0}
\type{bf}: \mathematics{\bf \nabla \phi = ∇ ϕ = 0}
\type{bi}: \mathematics{\bi \nabla \phi = ∇ ϕ = 0}
\type{tf}: \mathematics{\tf \nabla \phi = ∇ ϕ = 0}
\stoplines
\stopTEXpage
\stoptext
Hans
-
Hans Hagen | PRAGMA ADE
Ridderstraat 27 | 8061 GH Hasselt | The Netherlands
tel: 038 477 53 69 | voip: 087 875 68 74 | www.pragma-ade.com
| www.pragma-pod.nl
-
___
If your question is of interest to others as well, please add an entry to the
Wiki!
maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context
webpage : http://www.pragma-ade.nl / http://tex.aanhet.net
archive : http://foundry.supelec.fr/projects/contextrev/
wiki : http://contextgarden.net
___
Re: [NTG-context] Nabla operator appears italic in formula
On 24.03.2013 15:17, Hans Hagen wrote:
On 3/24/2013 12:23 PM, Otared Kavian wrote:
On 24 mars 2013, at 11:24, Hans Hagen pra...@wxs.nl wrote:
On 3/23/2013 9:34 PM, Xenia wrote:
Dear context list,
using the nabla symbol ∇ in formulas, I wondered why it looks italic
and
not upright as for example in [1].
I attach an example.
Because that's how it's defined in math italics ... is nabla always
supposed to be upright in standard math italic mode?
(I'll change the \nable definition to \unexpanded\def\nabla{∇}.)
Hans
Hi,
\nabla should be italic if all other math greek symbols, like \Omega,
\Gamma, \sum, ect are set in italic. Otherwise \nabla and all such
symbols should be upright.
Would it be possible to make this optional in math italics, something
like
\setupmathematics[mathsymbols=italic]
or
\setupmathematics[mathsymbols=upright]
Maybe this should be set when one chooses the greek letters to be
italic or upright in mathematics.
That is already there
\setupmathematics
[lcgreek=italic,
ucgreek=normal]
(normal, italic, none)
I've added sygreek so that one can also influence the nable and
differential (default normal). I tested with:
\starttext
\startTEXpage
\startlines
\type{--}: \mathematics{\nabla \phi = ∇ ϕ = 0}
\type{it}: \mathematics{\it \nabla \phi = ∇ ϕ = 0}
\type{bf}: \mathematics{\bf \nabla \phi = ∇ ϕ = 0}
\type{bi}: \mathematics{\bi \nabla \phi = ∇ ϕ = 0}
\type{tf}: \mathematics{\tf \nabla \phi = ∇ ϕ = 0}
\blank
\type{--}: \mathematics{\mathgreekupright \nabla \phi =
∇ ϕ = 0}
\type{it}: \mathematics{\it \mathgreekupright \nabla \phi =
∇ ϕ = 0}
\type{bf}: \mathematics{\bf \mathgreekupright \nabla \phi =
∇ ϕ = 0}
\type{bi}: \mathematics{\bi \mathgreekupright \nabla \phi =
∇ ϕ = 0}
\type{tf}: \mathematics{\tf \mathgreekupright \nabla \phi =
∇ ϕ = 0}
\blank
\setupmathematics[sygreek=italic]
\type{--}: \mathematics{\nabla \phi = ∇ ϕ = 0}
\type{it}: \mathematics{\it \nabla \phi = ∇ ϕ = 0}
\type{bf}: \mathematics{\bf \nabla \phi = ∇ ϕ = 0}
\type{bi}: \mathematics{\bi \nabla \phi = ∇ ϕ = 0}
\type{tf}: \mathematics{\tf \nabla \phi = ∇ ϕ = 0}
\stoplines
\stopTEXpage
\stoptext
Great, thank you!
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Wiki!
maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context
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[NTG-context] Nabla operator appears italic in formula
Dear context list, using the nabla symbol ∇ in formulas, I wondered why it looks italic and not upright as for example in [1]. I attach an example. Thanks, Xenia [1] https://en.wikipedia.org/wiki/Nabla_symbol nabla.pdf Description: Adobe PDF document \starttext \startformula \nabla \phi = â Ï = 0 \stopformula \stoptext ___ If your question is of interest to others as well, please add an entry to the Wiki! maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context webpage : http://www.pragma-ade.nl / http://tex.aanhet.net archive : http://foundry.supelec.fr/projects/contextrev/ wiki : http://contextgarden.net ___
