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9.10 AIMAG — Imaginary part of complex number

Description:
AIMAG(Z) yields the imaginary part of complex argument Z. The IMAG(Z) and IMAGPART(Z) intrinsic functions are provided for compatibility with g77, and their use in new code is strongly discouraged.
Standard:
Fortran 77 and later, has overloads that are GNU extensions
Class:
Elemental function
Syntax:
RESULT = AIMAG(Z)
Arguments:

Z The type of the argument shall be COMPLEX.

Return value:
The return value is of type REAL with the kind type parameter of the argument.
Example:
          program test_aimag
            complex(4) z4
            complex(8) z8
            z4 = cmplx(1.e0_4, 0.e0_4)
            z8 = cmplx(0.e0_8, 1.e0_8)
            print *, aimag(z4), dimag(z8)
          end program test_aimag

Specific names:

Name Argument Return type Standard
AIMAG(Z) COMPLEX Z REAL GNU extension
DIMAG(Z) COMPLEX(8) Z REAL(8) GNU extension
IMAG(Z) COMPLEX Z REAL GNU extension
IMAGPART(Z) COMPLEX Z REAL GNU extension