PROGRAM xbessj1 C driver for routine bessj1 INTEGER i,nval REAL bessj1,value,x CHARACTER text*18 open(7,file='FNCVAL.DAT',status='OLD') 10 read(7,'(a)') text if (text.ne.'Bessel Function J1') goto 10 read(7,*) nval write(*,*) text write(*,'(1x,t5,a1,t12,a6,t22,a9)') * 'X','Actual','BESSJ1(X)' do 11 i=1,nval read(7,*) x,value write(*,'(f6.2,2f12.7)') x,value,bessj1(x) 11 continue close(7) END