COMPLEX

 Real and complex numbers are floating-point representations.

 COMPLEX(KIND=4) (or COMPLEX*8) data is eight contiguous bytes
 aligned on an arbitrary byte boundary.  The low-order four bytes
 contain REAL(KIND=4) (or REAL*4) data that represents the real part
 of the complex number.  The high-order four bytes contain REAL data
 that represents the imaginary part of the complex number.  For
 information on the ranges of REAL data, see REAL (within the DATA
 CONSTANTS section of online Help).

 DOUBLE COMPLEX (COMPLEX(KIND=8) or COMPLEX*16) data is 16
 contiguous bytes aligned on an arbitrary byte boundary.  The
 low-order bytes contain DOUBLE PRECISION data that represents the
 real part of the complex number.  The high-order eight bytes
 contain DOUBLE PRECISION data that represents the imaginary part of
 the complex data.  For information on the ranges of DOUBLE
 PRECISION data, see DOUBLE_PRECISION (within the DATA CONSTANTS
 section of online Help).

 COMPLEX(KIND=16) (or COMPLEX*32) data is 32 contiguous bytes
 aligned on an arbitrary byte boundary.  The low-order bytes contain
 REAL(KIND=16) (or REAL*16) data that represents the real part of
 the complex number.  The high-order bytes contain REAL*16 data that
 represents the imaginary part of the complex number.  For
 information on the ranges of REAL*16 data, see REAL (within the
 DATA CONSTANTS section of online Help).