To make columns line up in Fortran, you must use format statements Instead of print *, write # format( *** ) where # is an arbitrary number (usually with 3
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The first WRITE() statement uses the freeform (*,*) format and is by far the most forgiving and easiest to use FORTRAN will handle all of the formatting using the minimum amount of space necessary to hold the data to be displayed and separate each data item by a single space
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[PDF] LECTURE 11: Formating To make columns line up in Fortran, you
To make columns line up in Fortran, you must use format statements Instead of print *, write # format( *** ) where # is an arbitrary number (usually with 3
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LECTURE 11: Formating
To make columns line up in Fortran, you must useformat statements.Instead of
print *, ... write # format( *** ) where#is anarbitrary number(usually with 3 digits) used as aname for the format and***areformat instructions. Just as in Scialb, the format instructions depends on the type of variables that we are dealing with and the space that we want to use for the printing: a ch aracterstrings of unspecified length. a12 r eserves12 s pacesfor ch aracters(letters, numerals) i for integers i5 re serves5 spa cesan integ er f7.2 reserves 7 s paces(including spaces for '.' an dany '-') for a real (floating point) number with two decimal places. 4f7.2 reserves 4 consecutive fields of type f7.2. 4x pr ints4 space sas does ' '. beg insa new line Items areright-justiedin their elds (blanks added on the left).For instance, when printing in thef7.2real format: '-999.44' lls its 7 space eld, '1.00'lls only the rightmost 4 of the 7 spacesFor example print *,x,ylets Fortran format the print. print '(20f6.2)',x,yprints both real numbersxandyin a eld of 6 spaces (including . and -) and 2 decimal places. The 20 species that this format may to be used to printas many as 20 real num- bers. But here, we have only two variables x, y and hence we use only2 of the possible 20 elds.The remaining 18 used elds are ignored.
If we write
print *,x print *,y then the rst statement printsx, advances to the next line and printsy. To print both on the same line,replaceprint *,xwith write(*,advance='no'),x. Here are four ways to print x in the 'f7.2' real format. print '(f7.2)',x101 format(f7.2)
!101 is the na mefor the format print 101,x !prints the value o fx by using the format 101 write(*,101),x !prints the value of x by us ingthe form at 101write(*,101,advance='no'),x doesnt advance to the next line after printing. 1 c11.1Mo difythe 5 red statemen tsto mak ethe title prin ton one line. Change this to get spaces betweenHw 1 Hw 2... You should get