/sys$common/syshlp/helplib.hlb FORTRAN, Error Messages, Run Time Errors, General, INVARGMAT  *Conan The Librarian (sorry for the slow response - running on an old VAX)

  NUMBER:  81

  ERROR CODE:  F

  MESSAGE TEXT:  invalid argument to math library

  EXPLANATION:  One of the mathematical procedures detected an
  invalid argument value.