Library /sys$common/syshlp/basichelp.hlb Run time errors, ONEOR_TWO  *Conan The Librarian (sorry for the slow response - running on an old VAX)

  One or two dimensions only (ERR=102)

  The program contains a MAT statement that attempts to assign more than
  two  dimensions  to  an array.  Change the number of dimensions in the
  MAT statement to one or two.  This error  cannot  be  trapped  with  a
  BASIC error handler.