Tuesday, September 9, 2003 Henning Hraban Ramm wrote:
Am Dienstag, 09.09.03, um 18:15 Uhr (Europe/Zurich) schrieb Ed L Cashin:
Hi. I am having trouble finding the right incantation for summoning the correct Z. There are some doubly-lined versions of N, Z, Q, and R, that are used often to signify the sets of natural numbers, integers, rational numbers, and reals, respectively.
Does anyone know how to get those? Here's a pic of the Z and Q. Note that there's white between the lines -- not fill.
Normally they're called "blackboard" letters. I know there are several fonts in every TeX distro. But I don't know how to access them in ConTeXt. Sure, the low level way will work, but I guess there's something better available.
$\blackboard{Z}$ should work if you're using the AMS collection (\usemathcollection[ams] from memory, check it) -- Giuseppe "Oblomov" Bilotta