select_cutoff_relative()

template<typename IterFirst , typename IterLast >

IterFirst syten::select_cutoff_relative	(	IterFirst	begin,
		IterLast	end
	)

Returns the first element which is smaller than the first element by a factor larger than SYTEN_SMALL_THRESHOLD.

Requires [begin, end) to be sorted in descending order by absolute value. If *begin is exactly zero, begin will be returned immediately.

Example\n Given [1e2, 1e-2, 1e-6, 1e-14, 1e-16, 1e-50], returns

an iterator to the element 1e-14.

References abs(), and underThreshold().

Referenced by rank().

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