What he did was to extract from before treatises, and to gather into the littlest conceivable space, the base of recommendations important to set up the strategies and equations utilized.” I am not a hugger. Other math history specialists accept that Ptolemy com pleted the work begun by Hipparchus that he worked out some vital subtleties and ordered new tables.
It is hard to determine what increments and changes Ptolemy made to effectively existing works. I am not a hugger. Toomer considers the Almagest a perfect work of art of lucidity and technique, better than any old logical course book and with few friends from any period.