Iterated digits squaring: Difference between revisions
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{{FormulaeEntry|page=https://formulae.org/?script=examples/Iterated_digits_squaring}}
'''Solution'''
The following function returns the end value (either 1 or 89) of a given number:
[[File:Fōrmulæ - Iterated digits squaring 01.png]]
The following function calculates the number of 89 endings, from 1 to a given number:
[[File:Fōrmulæ - Iterated digits squaring 02.png]]
'''Test case'''
[[File:Fōrmulæ - Iterated digits squaring 03.png]]
[[File:Fōrmulæ - Iterated digits squaring 04.png]]
=={{header|Go}}==
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