Right. I was thinking of χ, which apparently is called chi. Regards, Elias
On 1 August 2014 10:53, Kacper Gutowski <mwgam...@gmail.com> wrote: > On 2014-07-31 22:49:06, Peter Teeson wrote: > > David used theta as well. Is that also an available symbol? > > i.e. a greek letter not otherwise used by the APL language? > > You're probably refering to ⍬. This is not a theta. This symbol > is called zilde and it should look like zero with superimposed > tilde. It's not specifically related to lambdas. > Zilde stands for a numeric vector of zero length (just like '' is > a character vector). You can write (0⍴0) instead of ⍬. > > > -k > >
