ISBN13 check digit: Difference between revisions
→{{header|Fōrmulæ}}
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{{FormulaeEntry|page=https://formulae.org/?script=examples/ISBN13_check_digit}}
'''Solution'''
[[File:Fōrmulæ - ISBN13 check digit 01.png]]
'''Test cases'''
[[File:Fōrmulæ - ISBN13 check digit 02.png]]
[[File:Fōrmulæ - ISBN13 check digit 03.png]]
=={{header|Gambas}}==
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