Nerd quiz - Can you name a programming language for every letter of the alphabet?

APL, Brainfuck, Cobol, D, Erlang, Fortran, Goedel, Haskell, INTERCAL, Javascript, K, Lisp, Matlab, NewtonScript, OCaml, Python, QBasic, Ruby, Smalltalk, TeX, UnrealScript, Verilog, Wierd, XSLT, Yorick, Z++

Where's the challenge in that? I wanna see a factorial function, iterative and recursive (where applicable), in each. Now that's a nerd.<p>I'm guessing Trevor and rtm could manage about half the alphabet. pg, not a chance, he's too much of a language bigot.<p>I'd be lucky to get through maybe five without consulting a reference of some sort.

What about A, B, C, D, E, F, G, J, K, L, M, N, P, Q, R, S, T, U, V, W, Y and Z?<p>Seriously, they're all real single-letter languages (Google for "[letter] programming language" and wade through the results).<p>I knew of only about 5 of them already (B, C, D, E, K). I couldn't find real languages for H, I, O or X.

No, but I can P a lot.<p>Python, PHP, Perl, PostScript, PDF, Pascal, Pict, Pike, PL/1, Prolog.<p>Don't you love IBM... Programming Language 1... Operating System 2...

I failed:<p>A: Ada, B: B, C: C, D: D, E: Erlang, F: Forth, G: Gwbasic, H: Haskell, I: Io, L: Lisp, M: Miranda, N: Newtop Script, O: OCaml, P: Perl, Q: Qbasic, R: Ruby, S: Scheme, T: Tcl, U: ?, V: Visualbasic, Z: ?, X: ?, Y: Yacc, W: ?, K: ?

Off the top of my head: Ada, BCPL, C, Delphi, Erlang, Fortran, Godel, Haskell, Intercal, Java, K (if hypothetical languages count? This is a project by some FreeBSD developers to produce a more powerful version of C designed for kernel programming), Logo, Maple, N??, Occam, Pascal, Q??, Ratfor, Sed, TeX, U??, Visual Basic (if this counts as a language in itself rather than as a version of BASIC), Whitespace, X??, Yorick, Z??<p>I guess that's 19-21 out of 26, depending on the exact rules.

Justin.tv crew came up with 20.