| L1 | Variable L1 is an integer value equal to the number of basis functions during a GAMESS run. The variable is normally set in a subroutine by, L1 = NUM The duplication of values is to prevent altering the variable NUM. |
| L2 | Variable L2 is equal to the number of elements in a triangle matrix where the parent matrix is a square matrix of size L1 x L1. L2 = ( ( L1 * L1 ) + L1 ) / 2 |
| L3 | Variable Normally carries the number of elements for a square matrix of size L1 * L1. |
| Logical Units | Logical units are defined in gamess.src 436: IR = 5 |