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→Multiplicative functions: ''f''(''n'')-''f''(1), <- g(1)=1 |
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Different definitions exist depending on the specific field of application. Traditionally, an '''additive function''' is a function that preserves the addition operation:
:''f''(''x'' + ''y'') = ''f''(''x'') + ''f''(''y'')
for any two elements ''x'' and ''y'' in the ___domain.
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