*HEADING
: EIGENVALUE ANALYSIS OF AN UNCONSTRAINED 1-ELEMENT MESH  [CPEG4IH]
*PREPRINT,ECHO=YES,HISTORY=NO,MODEL=NO
*NODE,NSET=NALL
*NODE
*ELEMENT,TYPE=CPEG4IH,ELSET=EALL
*SOLID SECTION,MATERIAL=A1,ELSET=EALL,REFNODE=101
*MATERIAL,NAME=A1
*ELASTIC
 3.E6,.3
*DENSITY
 7.5E-4,
*STEP
*FREQUENCY, eigensolver=lanczos
 7, , ,-1.E7
*MODAL FILE
*OUTPUT,HISTORY,FREQUENCY=1
*MODAL OUTPUT
*END STEP