Fonts & Character Sets ⇒ 1 and an other one

[vincent-douce]

hello
i have understood (am i right ?) that the 1 does not existe natively in \mathbb{} so i have to install a specific package
i would like to be sure of this ; maybe am i wrong and a \one would exist ?
in lot of circumstances (using GeoGebra, using TeXmacs, typing on forums) installing a package is not possible
the alternative i have is bold…

second question :
i have found somewhere a nive \mathbb{N} i am not used with
would you know which font can give it ?
for info it was here :
http://blog.ac-versailles.fr/blath/publ ... rgence.pdf

Vinz

[rais]

When looking for a specific glyph, symbols-a4 aka The Comprehensive LaTeX Symbol List is worth a look...
It even contains a section called `Frequently Requested Symbols', which, if I understood you right, should lead you to the table `Math Alphabets'.

KR
Rainer