program test_matinv use fvn_linear implicit none integer, parameter :: n=3 complex(8),dimension(n,n) :: m1,m2,res real(8),dimension(n,n) :: rtmp,itmp character(len=80) :: fmcmplx integer :: i fmcmplx='(3("(",f8.5,",",f8.5,") "))' ! initialize pseudo random generator !call init_random_seed() ! fill real and imaginary part call random_number(rtmp) call random_number(itmp) ! create the complex matrix (fvn_i is defined in the fvn module) m1=rtmp+fvn_i*itmp write(*,*) "Matrix M1" do i=1,n write(*,fmcmplx) m1(i,:) end do call random_number(rtmp) call random_number(itmp) m2=rtmp+fvn_i*itmp write(*,*) write(*,*) "Matrix M2" do i=1,n write(*,fmcmplx) m2(i,:) end do write(*,*) write(*,*) "M1.x.M2" res=m1.x.m2 call write_res() write(*,*) write(*,*) "M1.x.M2 standard" res=matmul(m1,m2) call write_res() write(*,*) write(*,*) ".i.M1" res=.i.m1 call write_res() write(*,*) write(*,*) ".i.M1 standard" call fvn_matinv(3,m1,res) call write_res() write(*,*) write(*,*) "M1.ix.M2" res=m1.ix.m2 call write_res() write(*,*) write(*,*) "M1.ix.M2 standard" call fvn_matinv(3,m1,res) res=matmul(res,m2) call write_res() write(*,*) write(*,*) "M1.xi.M2" res=m1.xi.m2 call write_res() write(*,*) write(*,*) "M1.xi.M2 standard" res=m1.xi.m2 call fvn_matinv(3,m2,res) res=matmul(m1,res) call write_res() write(*,*) write(*,*) ".t.M1" res=.t.m1 call write_res() write(*,*) write(*,*) ".t.M1 standard" res=transpose(m1) call write_res() write(*,*) write(*,*) "M1.tx.M2" res=m1.tx.m2 call write_res() write(*,*) write(*,*) "M1.tx.M2 standard" res=matmul(transpose(m1),m2) call write_res() write(*,*) write(*,*) "M1.xt.M2" res=m1.xt.m2 call write_res() write(*,*) write(*,*) "M1.xt.M2 standard" res=matmul(m1,transpose(m2)) call write_res() write(*,*) write(*,*) ".h.M1" res=.h.m1 call write_res() write(*,*) write(*,*) ".h.M1 standard" res=transpose(conjg(m1)) call write_res() write(*,*) write(*,*) "M1.hx.M2" res=m1.hx.m2 call write_res() write(*,*) write(*,*) "M1.hx.M2 standard" res=matmul(transpose(conjg(m1)),m2) call write_res() write(*,*) write(*,*) "M1.xh.M2" res=m1.xh.m2 call write_res() write(*,*) write(*,*) "M1.xh.M2 standard" res=matmul(m1,transpose(conjg(m2))) call write_res() contains subroutine write_res() do i=1,n write(*,fmcmplx) res(i,:) end do end subroutine end program