Hi Xiao-Yong,

IBM APL2.

[] binds stronger than anything else.

Thus 3[1 2] is evaluated first, giving the RANK ERROR.

/// Jürgen


On 02/15/2017 09:14 PM, Xiao-Yong Jin wrote:
Feature or bug?

      1 2 3[2 1 3]
RANK ERROR
      1 2 3[2 1 3]
          ^^
      )sic
      (1 2 3)[2 1 3]
2 1 3




Reply via email to