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<!doctype html>
<title>CodeMirror: Fortran mode</title>
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<li><a class=active href="#">Fortran</a>
</ul>
</div>
<article>
<h2>Fortran mode</h2>
<div><textarea id="code" name="code">
! Example Fortran code
program average
! Read in some numbers and take the average
! As written, if there are no data points, an average of zero is returned
! While this may not be desired behavior, it keeps this example simple
implicit none
real, dimension(:), allocatable :: points
integer :: number_of_points
real :: average_points=0., positive_average=0., negative_average=0.
write (*,*) "Input number of points to average:"
read (*,*) number_of_points
allocate (points(number_of_points))
write (*,*) "Enter the points to average:"
read (*,*) points
! Take the average by summing points and dividing by number_of_points
if (number_of_points > 0) average_points = sum(points) / number_of_points
! Now form average over positive and negative points only
if (count(points > 0.) > 0) then
positive_average = sum(points, points > 0.) / count(points > 0.)
end if
if (count(points < 0.) > 0) then
negative_average = sum(points, points < 0.) / count(points < 0.)
end if
deallocate (points)
! Print result to terminal
write (*,'(a,g12.4)') 'Average = ', average_points
write (*,'(a,g12.4)') 'Average of positive points = ', positive_average
write (*,'(a,g12.4)') 'Average of negative points = ', negative_average
end program average
</textarea></div>
<script>
var editor = CodeMirror.fromTextArea(document.getElementById("code"), {
lineNumbers: true,
mode: "text/x-fortran"
});
</script>
<p><strong>MIME types defined:</strong> <code>text/x-Fortran</code>.</p>
</article>