Enumerator::ArithmeticSequence#begin

aseq.begin → num or nil

static inline VALUE
arith_seq_begin(VALUE self)
{
    return rb_ivar_get(self, id_begin);
}

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

See also #=== #each #== #end also in 4.1 · 4.0 · 3.4 · 3.2 · 3.1 · 3.0