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From: | Juergen Sauermann |
Subject: | Re: [Bug-apl] Outer product with replicate error |
Date: | Tue, 17 May 2016 18:53:13 +0200 |
User-agent: | Mozilla/5.0 (X11; Linux i686; rv:31.0) Gecko/20100101 Thunderbird/31.4.0 |
Hi Kacper, yes. APL2 produces what you predicted. I believe that the standard says little about how / and friends shall be parsed. In GNU APL a value left of / makes it a function at tokenization time in order to avoid testing at runtime. /// Jürgen On 05/17/2016 06:20 PM, Kacper Gutowski
wrote:
On Tue, May 17, 2016 at 4:49 PM, Juergen Sauermann wrote:is seems like IBM APL2 computes 1 2 3 /¨ 4 5 6 as: (1 2 3/4) (1 2 3/5) (1 2 3/6) However, the ISO standard says Z ← A f¨ B(...) The difference isn't in each operator, but in parsing / always as a monadic operator (albeit taking a numeric argument) rather than a dyadic function. I don't have APL2 to test, but I expect (1 2 3/)¨4 5 6 to work too. -k |
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