Let me ask some question on the builtins for Taylor coefficients. Firstly, I don't understand how diadic (u t.) works. Of the following two phrases, the first one gives the correct result, and the second one should give the same result according to the dictionary if I read it right, but I get something else. Why?
^t.i.6 1 1 0.5 0.166667 0.0416667 0.00833333 1 ^t.i.6 _ 1 0.5 0.333333 0.25 0.2 Secondly, about the (u t:) dyad. This one isn't defined in the dictionary, but calling it doesn't usually result in an error. Is this some kind of undocumented feature? Eg. $1 ^t:i.6 0 $1 (^&2)t:i.6 6 All above examples are using: JVERSION Engine: j701/2011-01-10/11:25 Library: 7.01.040 Platform: Linux 64 Installer: j701a_linux64.sh InstallPath: /home/ambrus/local/j64-701 Ambrus ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
