Re: [Bug-apl] inner product

[Juergen Sauermann]

Hi, the number of columns in a must match the number of rows in b (or the other way around, I don't quite remember). Try:       a+.=⍉b 3 0 0 0 0 0 3 0 0 0 0 0 3 0 0 0 0 0 3 0 0 0 0 0 3 /// Jürgen On 03/17/2017 05:17 PM, enz...@gmx.com wrote: Hi what am i missing here? a←b←5 3⍴⍳8 a=b +/a=b a+.=b length error