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author | Karl Berry <karl@freefriends.org> | 2010-09-18 00:10:58 +0000 |
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committer | Karl Berry <karl@freefriends.org> | 2010-09-18 00:10:58 +0000 |
commit | 3e043cb9a8d83174690ec924925f69217e3f1fcb (patch) | |
tree | 062b6cd49afe87309be093ad755e258b853bd2e5 /Master/texmf-dist/doc/latex/isomath/isomath.txt | |
parent | 079fd1cddf588d6f323494351c5f11cccb6f2381 (diff) |
isomath update (24aug10)
git-svn-id: svn://tug.org/texlive/trunk@19786 c570f23f-e606-0410-a88d-b1316a301751
Diffstat (limited to 'Master/texmf-dist/doc/latex/isomath/isomath.txt')
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diff --git a/Master/texmf-dist/doc/latex/isomath/isomath.txt b/Master/texmf-dist/doc/latex/isomath/isomath.txt new file mode 100644 index 00000000000..ad3697083c4 --- /dev/null +++ b/Master/texmf-dist/doc/latex/isomath/isomath.txt @@ -0,0 +1,701 @@ +.. -*- rst-mode -*- + +isomath: Math for scientists +**************************** + +:Author: Günter Milde +:Date: 2010-08-23 +:Copyright: © 2008, 2010 Günter Milde +:Licence: This work may be distributed and/or modified under the + conditions of the `LaTeX Project Public License`_, either + version 1.3 of this license or (at your option) any later version. + +:Abstract: The isomath package enables formatting Greek and Latin + letters as symbols for vectors, matrices, and tensors + in the typefaces recommended for scientific papers + by the International Standard ISO 31. + +.. contents:: +.. sectnum:: + +Motivation +---------- + +.. How do you write the stress tensor ``$\sigma$`` in a + sans-serif bold italic typeface, as recommended by [typefaces]_? + +Scientific organisations like IUPAP_, IUPAC_, NIST_, BIPM_, and others +recommend typesetting math according to the International Standard ISO 31 +`Quantities and units` [ISO-31]_.\ [#]_ + +.. [#] Summaries of these rules are free available, see [typefaces]_, + [checklist]_, [fonts_for_symbols]_, and [SI-brochure]_. + +The traditional `LaTeX math style` deviates in some points from this rules: + +* The ``\vec`` command produces an array accent, while ISO 31 recommends + a bold italic typeface for vector symbols. + +* Greek letters are excluded from font changes with the math + alphabets, while the ISO 31 rules apply equally to letters from the + Greek and Latin alphabet. + +* There is no provision for typesetting of Greek letters in bold italic + style recommended for vectors. + +* There is no provision for typesetting letters in sans-serif bold italic + recommended for typesetting tensor symbols. + +Some of these points are adressed by `related packages`_, however +there is currently no package (known to the author) that defines the +sans-serif bold italic math alphabet needed for tensor symbols. + + +Features +-------- + +.. _`equal treatment of Latin and Greek`: + +Equal treatment of Latin and Greek letters +~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ + +This feature is provided by the required package fixmath_ which +ensures that: + ++ Both, Greek and Latin letters change shape if a different + math alphabet is used. + ++ By default, uppercase Greek letters are typeset in italic style. + +However, `fixmath` works only for Computer Modern. With `isomath`, + ++ the used math fonts are configurable (using the rmdefault_ and + sfdefault_ options), and + ++ upright Greek letters can be made available through the common + ``\math*`` alphabets via the OMLmath_ options, if the + corresponding fonts support the `OML font encoding`_. + +Caution: + Placing Greek letters in a ``\math*`` macro, e. g. + ``\mathrm{k\Omega}``, can lead to garbage, as the standard math + alphabets are usually taken from text fonts that have ligatures and + non-alpha symbols in place of the small Greek letters. + Do not use Greek letters in the standard math alphabet commands + ``mathit``, ``mathrm``, ``mathbf``, ``mathsf``, and ``mathtt`` + unless you use the OMLmath_ options.\ [#]_ + + .. [#] Some packages provide ``\up*`` or ``\var*`` macros for + upright Greek letters so the above example could be written + ``\mathrm{k}\upOmega``. + + +New math alphabets +~~~~~~~~~~~~~~~~~~ +New math alphabets are defined: + +:``\mathbold``: boldface italic (vector and matrix symbols), +:``\mathboldsans``: sans-serif bold italic (tensor symbols). +:``\mathsans``: sans-serif italic (optional), + +The rmdefault_ and sfdefault_ options set the font family used for +these alphabets. + + +Command aliases +~~~~~~~~~~~~~~~ +The command aliases ``\vectorsym``, ``\matrixsym``, and ``\tensorsym`` +allow semantic markup. They print the argument in an ISO-conforming +typeface. + + +Font mappings +~~~~~~~~~~~~~ + +Some font definitions are added for font families which have an OML +encoded counterpart but no substitution definition in their ``*.fd`` +files. + +Usage +----- + +Make sure that LaTeX can find ``isomath.sty`` and insert the command:: + + \usepackage{isomath} + +in the document preamble (see also Examples_). + + +Options +~~~~~~~ + +rmdefault +''''''''' +Family for serif math fonts (roman and kursive). The default is to use the +corresponding text font family (the value of ``\rmdefault``). The font +must be available in `OML font encoding`_. + + +sfdefault +''''''''' +Family for sans-serif math fonts. The default is ``cmbr`` because many +sans-serif fonts define the Computer Roman font `cmm` as OML substitution +(see `Table 2`_). + +There are only few sans serif `fonts that support the OML +encoding`_: + +.. class:: booktab + +========== =========== =================================================== +Name Package Comment +========== =========== =================================================== +``cmbr`` cmbright_ `Computer Modern Bright`, bitmap, slightly lighter + than cmss (Type 1 fonts with hfbright_) +``fav`` arev_ `Arev` (`Vera Sans`) with math extension, + large x-hight +``iwona`` iwona_ Humanistic Sans Serif, + some shapes very similar to roman +``hvm`` hvmath_ `Helvetica Math`, commercial, free bitmap version +``llcmss`` lxfonts_ `LX Fonts`, very wide, excentric, large x-hight, + new in 2008 +========== =========== =================================================== + + +scaled +'''''' +As the choice of sans serif math fonts is very limited, +the fonts, ``fav``, ``llcmss``, and ``iwona`` can be scaled +with the ``scaled`` option (see examples_). + + +reuseMathAlphabets +'''''''''''''''''' +The definition of new math alphabets can lead to a “`too many math +alphabets used in version normal`_” error. As a workaround, this +option tells ``isomath`` to re-use the existing ``\mathbf`` and +``\mathsf`` alphabets for italic bold and sans-serif bold. [#]_ + +.. [#] To access the upright shapes, the corresponding ``\textbf`` and + ``\textsf`` commands might be used. However, this toggles the + math-mode off and might use a different font, so watch for + side-effects. + +OMLmath +'''''''' + +With Greek letters defined as ``\mathalpha``, the math alphabets are +expected to be in `OML font encoding`_. Unfortunately, the standard +math alphabets are usually taken from OT1 or T1 encoded fonts that +have ligatures and accents in place of the Greek letters. + +The following options cause isomath to (re)define math alphabets in OML +encoding:: + + OMLmathrm, OMLmathbf, OMLmathsf, OMLmathsans, OMLmathtt + +Setting these options enables access to small Greek letters in +different shapes with e.g. ``\mathrm{\pi}`` **if an OML encoded font +is available**. Currently, only the mathdesign_ package provides +upright `fonts that support the OML encoding`_. Many font packages +define an italic font as replacement for a roman font in OML encoding. + +With some packages, these options can result in a “`too many math alphabets +used in version normal`_” error. + +Examples +~~~~~~~~ + +* Use `isomath` with the default settings:: + + \usepackage{isomath} + +* Define also a slanted sans-serif math alphabet:: + + \usepackage[OMLmathsans]{isomath} + +* Use the heavier `Arev` sans serif fonts:: + + \usepackage[sfdefault=fav,scaled=0.875]{isomath} + + (Adapt the scaling factor to your needs.) + +* Redefine the standard ``\vec`` macro to typeset its argument in `bold + italic`:: + + \usepackage{isomath} + \renewcommand{\vec}{\vectorsym} + + (Use ``\bm`` or ``boldmath`` for for the zero and unit vectors, as + ``\vec{0}`` and ``\vec{1}`` will give undesired results.) + +* The mathdesign_ package provides an OML encoded *bold roman* font but does + not set it up for ``\mathbf``. To set it up, write e.g.:: + + \usepackage[charter]{mathdesign} + \usepackage[OMLmathbf]{isomath} + + Now, e.g. ``\mathbf{\pi}`` produces a bold upright pi symbol. + +See also the ``isomath-test.tex`` test document. + + +Related packages +---------------- + +Requirements +~~~~~~~~~~~~ + +fixmath_ + by Walter Schmidt defines Greek letters as alphabetic symbols. + +kvoptions_ + (in the oberdiek_ bundle) facilitates the setup of package options + and provides a key=value interface (based on keyval_). + + +Recommendations +~~~~~~~~~~~~~~~ + +cmbright_ + provides *sans serif* and *sans-serif bold* fonts for the + ``\mathsans`` and ``\mathboldsans`` alphabets that match with + Computer Modern and derivatives. Free Type 1 versions of the fonts + with hfbright_. + +arev_ + provides *sans serif* somewhat heavier letters that are clearly + distinguishable from the roman or italic counterparts (important if + used to distinguish vectors and tensors). However, `Arev` has a + large x-hight, so for most default fonts, either small or capital + letters will not match in size. + + +Alternatives +~~~~~~~~~~~~ + +If the only requirement is a bold italic font for (Latin and Greek) vector +symbols, there are established alternatives to `isomath`: + +* Packages that support `equal treatment of Latin and Greek`_ and + provide the ``\mathbold`` alphabet (but not ``\mathsansbold``) in + `OML font encoding`_: + + Roman + * eulervm_ (Euler Math), + * fixmath_ (Computer Modern), + * mathpazo_ (Palatino), + * tmmath_ (TM-Math/Times). + + Sans serif + * arev_ (Arev/Vera Sans), + * cmbright_ (CM Bright), + * hvmath_ (HV-Math/Helvetica), + + +* Packages that provide commands which can be used as replacement for + ``\vec``: + + * `amsbsy`_ (part of `amsmath`_, the near-indispensable adjunct to serious + mathematical typesetting in LaTeX) defines ``\boldmath``, + + * `bm`_ defines a command ``\bm`` which makes its argument bold (more + careful than amsbsy's ``\boldmath``). Combining `bm` and `isomath` may + lead to the `too many math alphabets used in version normal`_ error. + +The ``\text`` macro from `amsmath`_ can be used to get e.g. upright or +sans-serif bold slanted Greek symbols from a text font into a formula. + + +Conflicts +~~~~~~~~~ + +* “_`too many math alphabets used in version normal`” + + This error occurs if the combination of packages tries to load more + than 16 fonts into the ‘normal’ math version. + + It can be avoided with the reuseMathAlphabets_ option (see there + for side-effects). + + Examples for problematic combinations: + + + The `kpfonts`_, `pxfonts`_, and `txfonts`_ packages define many + additional math alphabets. + + + The `bm`_ package normally allocates several symbol fonts for bold + and heavy fonts. Their number can be customized by defining + ``\bmmax`` and ``\hmmax`` before loading the package. + +* The `fourier`_ package for math typesetting with Utopia defines its own, + incompatible math font encodings. It cannot be used with ``isomath`` but + provides other means to typeset upright or italic Greek (see its + documentation). + + However, it is possible to use the symbols from `fourier`_ together + with math alphabets from another package, e.g `mathdesign`_:: + + \usepackage{fourier} + \usepackage[OMLmathbf,rmdefault=mdput, + sfdefault=arev,scaled=0.85]{isomath} + + +Background +---------- + +Letter symbols +~~~~~~~~~~~~~~ + +IUPAC_'s [fonts_for_symbols]_ guide says: + + 2. The overall rule is that symbols representing physical quantities (or + variables) are italic, but symbols representing units, or labels, are + roman. […] + + 3. The above rule applies equally to letter symbols from both the Greek + and the Latin alphabet, […]. + +In contrast, the standard LaTeX style treats Greek letter symbols + +* as invariant operators, + +* with lower case italic and upper case upright. + +A possible fix (established by fixmath_) is using a common font for +Greek and Latin letters. There is one established font encoding +providing Latin and Greek letters: the `OML font encoding`_. However, + +* support_ for OML is limited to a few (mostly italic) fonts. + +* The widely supported but non-standard `LGR` font encoding has Greek + but no Latin letters, while + +* the standard Greek font encoding `T7` is just a “reserved name”. + + +OML font encoding +~~~~~~~~~~~~~~~~~ + +The `LaTeX font encodings` guide [encguide]_ names the OML encoding +`TeX math italic` and defines: + + The OML encoding contains italic Latin and Greek letters for use in + mathematical formulas (typically used for variables) together with some + symbols. + +The reference to *italic* shape is odd: + +* No other font encoding is specific to the font shape. + +* The different font selection and the semantic of font features in + math do not interfere with the font *encoding*: Both, + ``\DeclareSymbolFont`` and ``\DeclareMathAlphabet`` require a + shape argument. Thus it is possible to set up OML encoded math + alphabets in roman {n} as well as italic {it} shape without + conflicts. + +This seems to be a remnant of pre-NFSS times – there is only one OML +encoded font in Knuth's Computer Modern fonts: `Computer Modern Math +Italic` (cmmi) – rather than a necessary restriction. + +Proposals: + +* Drop the *italic* from the definition. Optionally add an explanation: + + The OML encoding contains Latin and Greek letters for use in + mathematical formulas (typically used for variables) together with + some symbols. It first appeared in the `Computer Modern Math + Italic` (cmmi) font. + +* The name `TeX math italic` can be interpreted as “the encoding + **of** `Computer Modern Math Italic`” rather than “an encoding + **for** math italic” fonts. + + A less confusing name would be `TeX math letters` or `Original/Old + Math Letters`. The latter would also explain the acronym OML. + + +Support +''''''' + +Unfortunately, support for the OML encoding is missing for many font +families even if the base font contains all Greek letters. + +Supported font families can be found searching for ``oml*.fd`` files +and grepping for ``DeclareFont.*OML`` in ``*.sty`` files. +`Table 1`_ lists the findings for a selection of TeXLive + some +additonally installed font packages. + +* If there is an alias (substitution) from the text font to a + math-variant, only the text font is listed. + +* Many text fonts define substitutions also for upright shape, + however mapping to an italic variant of the OML encoded font. These + are not listed as supporting ``m/n`` or ``bx/n`` here. + +`Table 2`_ lists some fonts that define ``cmm`` as OML substitution. +With isomath, a better matching substitution can be set using the +rmdefault_ or sfdefault_ options. + +.. _Table 1: + +.. table:: _`Fonts that support the OML encoding` + + ============= =========================== ======= ======== ====== ======= + Name Family m/it bx/it m/n bx/n + ============= =========================== ======= ======== ====== ======= + aer AE (Almost European) x x + antt Antykwa Torunska x x + cmr Computer Modern Roman x x + ccr Concrete x x + cmbr Computer Modern Bright x x + hlh Lucida x x + hfor CM with old-style digits x x + iwona Iwona (sans serif) x x + jkp Kepler Serif x x + jkpl Kepler Serif x x + jkpvos Kepler Serif x x + jkplvos Kepler Serif x x + llcmm LXfonts (sans serif) x x + lmr Latin Modern Roman x x + mak Kerkis x + kurier Kurier x x + mdbch Math Design Charter x x x x + mdput Math Design Utopia x x x x + mdugm Math Design Garamond x x x x + neohellenic GFS Neohellenic x + plcm CM (PLaTeX) x + ptmom Times (Omega or MB-Times) x x + ptmomu Times (Omega or MB-Times) x x + ptmcm Times (psfont) x + pxr Palatino (pxfonts) x x + qpl Palatino/Pagella (qpxmath) x x + qtm Times/Termes (qtxmath) x x + txr Times (txfonts) x x + udidot Didot (gfsdidot) x + ywclm (greektex) x x + zavm Arev (Vera Sans-Serif) x x + zesfcm (efont) x + zplm Palatino (mathpazo) x x + zpple Palatino x x + ztmcm Times (mathptmx) x + zer Computer Modern (zefonts) x x + ============= =========================== ======= ======== ====== ======= + + +.. _Table 2: + +.. table:: Non-CM fonts with ``cmm`` as OML substitution + + ============= =============================== + Family Name + ============= =============================== + bch Charter (psnfss) + pag Avant Garde (psnfss) + pbk Bookman (psnfss) + pcr Courier (psnfss) + phv Helvetica (psnfss) + pnc New Century Schoolbook (psnfss) + ppl Palatino (psnfss) + ptm Times Roman (psnfss) + put Utopia (psnfss) + pzc Zapf Chancery (psnfss) + uag Avant Garde (avantgar) + ubk Bookman (bookman) + ucr Courier (courier) + ucrs Courier + unc New Courier (nctrsbk) + uni Universal (universa) + uhv Helvetica (helvetic) + upl Palatino (palatino) + utm Times (times) + uzc Zapf Chancery (zapfchan) + ============= =============================== + + +Math in Unicode +~~~~~~~~~~~~~~~ + +Basis for the definition of the Unicode block +`mathematical alphanumeric symbols`_, was the consideration outlined +in [beeton:2000]_: + + These alphabets are needed for proper composition + of mathematics: + + * lightface upright Latin, Greek and digits + * boldface upright Latin, Greek and digits + * lightface italic Latin, Greek and digits + * boldface italic Latin, Greek and digits + * script + * fraktur + * bold fraktur + * open-face (blackboard bold) including digits + * lightface upright sans serif Latin and digits + * lightface italic sans serif Latin + * boldface upright sans serif Latin, Greek, and digits + * boldface italic sans serif Latin and Greek + * monospace Latin and digits + + Except for the lightface upright letters and digits, + which are to be encoded using the base Unicodes + (ASCII for the Latin letters and digits), the + alphanumerics are to be placed in a tightly packed + block (U+D400–D7FF) in plane 1, so that they can + be used for math (most likely via entity names in + MathML), but will be very difficult to access for + other purposes. + +The technical report `Unicode Support for Mathematics` [tr25]_ lists +“alphanumeric symbols encountered in mathematics” in table 2: +`Mathematical Alphabets`. + +The Unicode block `mathematical alphanumeric symbols`_ provides style +variants for Latin and Greek letters and digits. It is labelled “to be +used for mathematical variables where style variations are important +semantically”. `Table 3`_ gives a survey of current LaTeX support. + +.. _table 3: + +.. table:: Styles in the `mathematical alphanumeric symbols`_ + Unicode block + :class: booktab + + ================= ======= ================= ========================== + Style Symbols LaTeX macro Package, Comment + [#]_ + ================= ======= ================= ========================== + bold LGD ``\mathbf`` no Greek + + italic LG ``\mathit`` no Greek + \ ``\mathnormal`` small Greek but + old-style digits (upright) + bold italic LG ``\mathbold`` fixmath and friends + \ ``\boldsymbol`` ams + script L ``\mathcal`` or only capital Latin + (calligraphic) ``\mathscr`` + bold script L + fraktur L ``\mathfrak`` eufrak + double-struck L D ``\mathbb`` bbold, mathbbol, + mbboard + \ ``\mathbbm`` bbm + \ ``\mathds`` dsfont + bold fraktur L + sans-serif L D ``\mathsf`` no Greek + sans-serif bold LGD + sans-serif italic L ``\mathsans`` isomath + sans bold italic LG ``\mathboldsans`` isomath + monospace L D ``\mathtt`` no Greek + ----------------- ------- ----------------- -------------------------- + *Not in the mathematical alphanumeric symbols block*: + ---------------------------------------------------------------------- + plain LGD ``\mathrm`` no Greek + \ ``\mathnormal`` capital Greek + ================= ======= ================= ========================== + +.. [#] LGD: **L**\ atin, **G**\ reek, **D**\ igits + + + +Conclusions and outlook +~~~~~~~~~~~~~~~~~~~~~~~ + +It is hoped, that in the future more fonts families will support the OML +encoding in normal and bold weight as well as upright and italic shape. +This would be a major step towards a LaTeX equivalent of the `Mathematical +Alphanumeric Symbols`_ Unicode block. + +This should be (relatively) easy to achieve via virtual fonts when the +glyphs for the Greek letters already exist. Examples are Latin Modern, +Kerkis, GFS-Neohellenic, LX-Fonts and KP-Serif. + +Alternatively, the T7 encoding could be used for math alphabets (if it ever +happens to materialise). + +Upright small Greek letters in ``\mathrm`` would enable the specification of +the constant pi, Myons, Pions, alpha-particles, photons, and neutrinos +without special packages. (With mathdesign_, this is already possible +today.) + + + +References +---------- + +.. [ISO-31] International Standard 31 `Quantities and units`, + (ISO 31-0:1992 to ISO 31-14:1992): + http://www.iso.org/iso/iso_catalogue/catalogue_tc/catalogue_tc_browse.htm?commid=46202 + +.. [typefaces] `Typefaces for Symbols in Scientific Manuscripts`: + http://physics.nist.gov/Document/typefaces.pdf + +.. [checklist] `SI Unit rules and style conventions` + Check List for Reviewing Manuscripts: + http://physics.nist.gov/cuu/Units/checklist.html + +.. [fonts_for_symbols] `On the use of italic and roman fonts for symbols + in scientific text`, (Revised December 1999): + http://old.iupac.org/standing/idcns/fonts_for_symbols.html + +.. [SI-brochure] `The International System of Units (SI)`: + http://www.bipm.org/en/si/si_brochure/ + +.. [encguide] `LaTeX font encodings`: + http://mirror.ctan.org/macros/latex/doc/encguide.pdf + +.. [fntguide] `LaTeX 2e font selection`: + http://mirror.ctan.org/macros/latex/doc/fntguide.pdf + +.. [tr25] `Unicode Support for Mathematics`, Unicode Technical Report #25: + http://www.unicode.org/reports/tr25/ + +.. [beeton:2000] Barbara Beeton: + `Unicode and math, a combination whose time has come – Finally!`, + TUGBoat, 21#3, 2000. available: + http://www.tug.org/TUGboat/Articles/tb21-3/tb68beet.pdf. + +.. see also + [koma-mail] Custom font substitution: http://www.komascript.de/node/823 + + [Green-Book] `Quantities, Units and Symbols in Physical Chemistry`, + 3rd edition, RSC Publishing, Cambridge 2007: + [ISBN 0 85404 433 7; ISBN-13 978 0 85404 433 7] + + +.. Links + ===== + +.. Print external links as footnotes (currently errors with LaTeX) + .. target-notes:: + +.. _LaTeX Project Public License: http://www.latex-project.org/lppl.txt +.. _BIPM: http://www.bipm.org/ +.. _IUPAC: http://iupac.org/ +.. _IUPAP: http://www.iupap.org/ +.. _NIST: http://physics.nist.gov/ +.. _mathematical alphanumeric symbols: + http://www.unicode.org/charts/PDF/U1D400.pdf +.. _amsbsy: http://dante.ctan.org/CTAN/help/Catalogue/entries/amsbsy.html +.. _amsmath: http://dante.ctan.org/CTAN/help/Catalogue/entries/amsmath.html +.. _arev: http://dante.ctan.org/CTAN/help/Catalogue/entries/arev.html +.. _bm: http://dante.ctan.org/CTAN/help/Catalogue/entries/bm.html +.. _cmbright: http://dante.ctan.org/CTAN/help/Catalogue/entries/cmbright.html +.. _eulervm: http://dante.ctan.org/CTAN/help/Catalogue/entries/eulervm.html +.. _fixmath: http://dante.ctan.org/CTAN/help/Catalogue/entries/fixmath.html +.. _fix-cm: http://dante.ctan.org/CTAN/help/Catalogue/entries/fix-cm.html +.. _fourier: http://dante.ctan.org/CTAN/help/Catalogue/entries/fourier.html +.. _hvmath: http://dante.ctan.org/CTAN/help/Catalogue/entries/hvmath.html +.. _hfbright: http://dante.ctan.org/CTAN/help/Catalogue/entries/hfbright.html +.. _ifthen: http://dante.ctan.org/CTAN/help/Catalogue/entries/ifthen.html +.. _iwona: http://dante.ctan.org/CTAN/help/Catalogue/entries/iwona.html +.. _kpfonts: http://dante.ctan.org/CTAN/help/Catalogue/entries/kpfonts.html +.. _kvoptions: http://dante.ctan.org/CTAN/help/Catalogue/entries/kvoptions.html +.. _keyval: http://dante.ctan.org/CTAN/help/Catalogue/entries/keyval.html +.. _lxfonts: http://dante.ctan.org/CTAN/help/Catalogue/entries/lxfonts.html +.. _mathdesign: http://dante.ctan.org/CTAN/help/Catalogue/entries/mathdesign.html +.. _mathpazo: http://dante.ctan.org/CTAN/help/Catalogue/entries/mathpazo.html +.. _oberdiek: http://dante.ctan.org/CTAN/help/Catalogue/entries/oberdiek.html +.. _sfmath: http://dtrx.de/od/tex/sfmath.html +.. _pxfonts: http://dante.ctan.org/CTAN/help/Catalogue/entries/pxfonts.html +.. _tmmath: http://dante.ctan.org/CTAN/help/Catalogue/entries/tmmath.html +.. _txfonts: http://dante.ctan.org/CTAN/help/Catalogue/entries/txfonts.html |