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# General Technical Character Entities (%isotech;)

%isotech; — General Technical Character Entities

## Synopsis

The `%isotech;` parameter entity includes the ISO character entities with the public identifier:

      ISO 8879:1986//ENTITIES General Technical//EN

## Description

The following character entities are defined in this entity set:

Entity Name | Unicode Code point | Sample Glyph | Description
--- | --- | --- | ---
aleph | 2135 |  | Alef symbol
and | 2227 |  | Logical and
ang90 | 221F |  | Right angle
angsph | 2222 |  | Spherical angle
ap | 2248 |  | Almost equal to
becaus | 2235 |  | Because
bottom | 22A5 |  | Up tack
cap | 2229 |  | Intersection
cong | 2245 |  | Approximately equal to
conint | 222E |  | Contour integral
cup | 222A |  | Union
equiv | 2261 |  | Identical to
exist | 2203 |  | There exists
forall | 2200 |  | For all
fnof | 0192 |  | Latin small letter f with hook
ge | 2265 |  | Greater-than or equal to
iff |  |  | LEFT RIGHT DOUBLE ARROW
infin | 221E |  | Infinity
int | 222B |  | Integral
isin | 2208 |  | Element of
lang | 3008 |  | Left angle bracket
lArr | 21D0 |  | Leftwards double arrow
le | 2264 |  | Less-than or equal to
minus | 2212 |  | Minus sign
mnplus | 2213 |  | Minus-or-plus sign
nabla | 2207 |  | Nabla
ne | 2260 |  | Not equal to
ni | 220B |  | Contains as member
or | 2228 |  | Logical or
par | 2225 |  | Parallel to
part | 2202 |  | Partial differential
permil | 2030 |  | Per mille sign
perp | 22A5 |  | Up tack
prime | 2032 |  | Prime
Prime | 2033 |  | Double prime
prop | 221D |  | Proportional to
radic | 221A |  | Square root
rang | 3009 |  | Right angle bracket
rArr | 21D2 |  | Rightwards double arrow
sim | 223C |  | Tilde operator
sime | 2243 |  | Asymptotically equal to
square | 25A1 |  | White square
sub | 2282 |  | Subset of
sube | 2286 |  | Subset of or equal to
sup | 2283 |  | Superset of
supe | 2287 |  | Superset of or equal to
there4 | 2234 |  | Therefore
Verbar | 2016 |  | Double vertical line
angst | 212B |  | Angstrom sign
bernou | 212C |  | Script capital b
compfn | 2218 |  | Ring operator
Dot | 00A8 |  | Diaeresis
DotDot | 20DC |  | Combining four dots above
hamilt | 210B |  | Script capital h
lagran | 2112 |  | Script capital l
lowast | 2217 |  | Asterisk operator
notin | 2209 |  | Not an element of
order | 2134 |  | Script capital o
phmmat | 2133 |  | Script capital m
tdot | 20DB |  | Combining three dots above
tprime | 2034 |  | Triple prime
wedgeq | 2259 |  | Estimates

Publishing Character Entities (%isopub;) |  | Part III. Appendixes

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