Commands

  As stated above, each command block must start with a command name. The present version has the following commands

      FLAG      SET         
      BEAM      LASER     EXTERNALFIELD      
      LASERQED  CFQED     BBFIELD   PPINT     LUMINOSITY
      LORENTZ   DRIFT     PUSH      ENDPUSH   
      DO        ENDDO     IF        ELSE      ENDIF
      WRITE     PRINT     PLOT   
      CLEAR     FILE      HEADER    STOP      END

The command names may be shortened if not ambiguous. Therefore, LASERQ is equivalent to LASERQED. This rule applies also to the operand keywords of all commands. (But does not apply to parameter and function names.)