The selection of fonts within math mode is quite different to that of
text fonts.
Some math fonts are selected explicitly by one-argument commands such
as |<#236#>max<#236#>| or |<#237#>vec<#237#>|: these are called math
alphabets. These math alphabet commands affect only the font used
for letters and symbols of type || (see
Section~#Sec:math.commands#239>); other symbols within the argument
will be left unchanged. The predefined math alphabets are:
<#240#>center<#240#>
<#241#>tabular<#241#><#242#>ccc<#242#>
Alphabet ;SPMamp; Description ;SPMamp; Example
|| ;SPMamp; default ;SPMamp; abcXYZ
|| ;SPMamp; roman ;SPMamp; #math80#abcXYZ
|| ;SPMamp; bold roman ;SPMamp; #math81#abcXYZ
|| ;SPMamp; sans serif ;SPMamp; #math82##tex2html_wrap_inline1789#
|| ;SPMamp; text italic ;SPMamp; #math83#abcXYZ
|| ;SPMamp; typewriter ;SPMamp; #math84#abcXYZ
|| ;SPMamp; calligraphic ;SPMamp; #math85##tex2html_wrap_inline1793#
Other math fonts are selected implicitly by TEX<#254#><#254#> for symbols, with
commands such as |&oplus#oplus;| (producing ⊕) or with straight
characters like |;SPMgt;;SPMgt;| or |+|. Fonts containing such math symbols are
called math symbol fonts. The predefined math symbol fonts
are:
<#256#>center<#256#>
<#257#>tabular<#257#><#258#>ccc<#258#>
Symbol font ;SPMamp; Description ;SPMamp; Example
|operators| ;SPMamp; symbols from || ;SPMamp; [ + ]
|letters| ;SPMamp; symbols from || ;SPMamp; ;SPMlt; ;SPMlt; #tex2html_wrap_inline1797# ;SPMgt; ;SPMgt;
|symbols| ;SPMamp; most LATEX<#262#><#262#> symbols ;SPMamp; ≤*≥
|largesymbols| ;SPMamp; large symbols ;SPMamp; #math86##tex2html_wrap_inline1800##tex2html_wrap_inline1801##tex2html_wrap_inline1802#
Some math fonts are both math alphabets and math symbol
fonts, for example || and |operators| are the same font, and
|| and |letters| are the same font.
Math fonts in LATEX<#267#><#267#> have the same five attributes as text fonts:
encoding, family, series, shape and size. However, there are no
commands that allow the attributes to be individually changed.
Instead,
the conversion from math fonts to these five attributes is controlled
by the math version. For example, the |normal| math version
maps:
<#269#>center<#269#>
<#270#>tabular<#270#><#812#>rlc@<#271#> <#271#>c@<#272#> <#272#>c@<#273#> <#273#>c<#812#>
#tex2html_accent_inline1803#