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End of Life Ruby 3.1 has reached end of life and gets no more fixes. Switch to Ruby 4.0 →

instance method

Enumerator::ArithmeticSequence#begin

aseq.begin → num or nil

Returns the number that defines the first element of this arithmetic sequence.

See also #=== #each #== #end also in 4.1 · 4.0 · 3.4 · 3.3 · 3.2 · 3.0