Toomer (1974) contains a plausible reconstruction. Ptolemy also constructed a table of chords and his method is preserved. This will be described later.

Babylonian arithmetical methods continued to be used in the Greek world right up to Ptolemy's time. Indeed, Hipparchus used them to compute both solar and lunar longitudes while developing his geometrical schemes (see Jones (1991a)).

Delambre L 'histoire de I'astronomie ancienne, I (1817). Translation from Berry (1961).

This is probably a bit over the top. Delambre tends to credit Hipparchus with things that most modern scholars attribute to his successor, Ptolemy.

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