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996
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1
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2 Notes on iching1.i and iching2.i:
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3
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4 Both versions (1 and 2) use the same code for generating lines of the
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5 hexagram, a simulation of the "coin oracle" method. (Six separate
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6 unconditional calls to (1020) were used since I thought lumping them
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7 all together by starting .1 at #6 would be disrespectful.)
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8 Implementation of the yarrow-stalk oracle is left as an exercise for
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9 the student. Note that in converting the numbers from the program into
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10 the lines of a hexagram, one should work from the bottom up. The last
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11 number gives the top line.
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12
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13 The traditional sequence of the hexagrams does not have a consistent
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14 mathematical explanation. Version 2 of the program therefore uses a
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15 lookup table to determine the number of each hexagram in sequence. The
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16 six lines are printed as in version 1, then the sequence number for the
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17 hexagram, and finally the sequence number for the derived hexagram
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18 obtained by replacing moving lines (9 and 6) by their opposites.
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19
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20 Louis Howell
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21 September 10, 1996
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