u4.55.03 Operator ELIM_LAGR# 1. But 2. Syntax 3. Operands 3.1. Operand MATR_RIGI 3.2. Operand MATR_ASSE 3.3. Operand TITRE 3.4. Operand INFO 4. Multi-processor computing 5. example 5.1. Modal calculation on matrices with or without Lagrange equations