Re: [Bug-apl] multiple inner product

[Jay Foad]

There was some relevant discussion in comp.lang.apl here: https://groups.google.com/forum/#!topic/comp.lang.apl/23LrwRZKmPs

On 6 July 2016 at 19:31, Xiao-Yong Jin <address@hidden> wrote:

The following from GNU APL,

      (⊂[1]⍳2 3)+.+.+⊂[1]10×⍳2 3
 209 198
      (⊂[1]⍳2 3)(+.+).+⊂[1]10×⍳2 3
 209 198
      (⊂[1]⍳2 3)+.(+.+)⊂[1]10×⍳2 3
  33 66  66 66

do not agree with Dyalog APL,

      ⎕ML
3
      (⊂[1]⍳2 3)+.+.+⊂[1]10×⍳2 3
  165 242
      (⊂[1]⍳2 3)(+.+).+⊂[1]10×⍳2 3
  165 242
      (⊂[1]⍳2 3)+.(+.+)⊂[1]10×⍳2 3
  99 132

I’m not sure which one is at fault here.  Any idea?