I pasted the lines into the ijx window, then highlight the lines and pressed ctrl+E for execute. Then I got
|spelling error | 'a b c' =: y. Then I removed the dot after y and it worked. rq 3 : 0 'a b c' =: y ((-b) (+,-) %: (b^2)-4*a*c) % (2*a) ) rq _1 1 1 _0.618034 1.61803 p. |. _1 1 1 ┌──┬─────────────────┐ │_1│1.61803 _0.618034│ └──┴─────────────────┘ --- Den ons 29/9/10 skrev Dan Bron <[email protected]>: Fra: Dan Bron <[email protected]> Emne: Re: [Jprogramming] quadratic equation primer example gives syntax error Til: "J Programming" <[email protected]> Dato: onsdag 29. september 2010 18.51 You can't copy/paste multiple lines into the IJX window. [1] For multi-line explicit definitions, paste it into a IJS window (a J script: try CTRL+N), then run the window (try CTRL+W or CTRL+SHIFT+W). Also, replace y. with y (delete the trailing dot). Do this everywhere you see any one of y. x. u. v. m. or n. . -Dan [1] For some reason, the J frontend distinguishes between the keystroke <ENTER> and the character newline. The next version of J, J7, has a frontend that fixes this problem. Please excuse typos; composed on a handheld device. -----Original Message----- From: [email protected] Sender: [email protected] Date: Wed, 29 Sep 2010 16:31:11 To: <[email protected]> Reply-To: Programming forum <[email protected]> Subject: [Jprogramming] quadratic equation primer example gives syntax error Does anyone know why I get this syntax error? rq =: 3 : 0 'a b c' =: y. ((-b) (+,-) %: (b^2)-4*a*c) % (2*a) ) |syntax error | ) Thank you, Don Mintz ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
