[Jprogramming] J 9.01 funny result

[Devon McCormick]

So, in my recently installed J 9.01 (Engine: j901/j64avx2/windows), I get
this surprising result in the final case (indentation added manually since
this does not work for my session under emacs):
   mat=. <:+:10 10?@$0
   +/,mat+/ . * %.mat
10
   mat=. <:+:100 100?@$0
   +/,mat+/ . * %.mat
100
   mat=. <:+:1000 1000?@$0
   +/,mat+/ . * %.mat
21278.6

The last sum should be 1000.


-- 

Devon McCormick, CFA

Quantitative Consultant