conjg(z) returns the conjugate of z. If z is (x, y) then the result is (x, -y)
FORTRAN 77 and later
z = conjg(z)
z - The type shall be complex.The return value is of type complex.
program test_conjg
complex :: z = (2.0, 3.0)
complex(8) :: dz = (2.71_8, -3.14_8)
z= conjg(z)
print *, z
dz = dconjg(dz)
print *, dz
end program test_conjg