Graphics Compatibility System (GCS). Primer on Computer Graphics Programming. Programmers Reference Manual (1978)
Defense Technical Information Center · leaf 421
ff ai i ustart CAU- UPSET C 'TERMINATOR'. rAi i UASPCT Cl .) CAU. USET C' SOFTWARE CHARACTERS') CAU- UPSET C 'HORIZONTAL SIZE', 2. 6) CAU- UPSET C' VERTICAL SIZE', 3. E) CALL UNOVE C60..S0.) PO 10 I - l, 8 CALL UR0TAT C4S.»CFL0ATCI— I ))) IS CALL UWRITI C' CIRCULAR P4ESSA0E, '. 'TEXT') CALL UENP…
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![An illustration from Cosmographia in qvatvor libros distribvta summo ordine, miraqve facilitate, ac breuitate ad magnam Ptolemæi mathematicam constructionem, ad vniuersamque astrologiam institutens. Francisco Barocio ... avtore. Cum præfatione eiusdem autoris, in qua perfecta quidem astrologiæ diuisio, & enarratio autorum illustrium, & voluminum ab eis conscriptorum in singulis astrologiæ partibus habetur: Joannis de Sacrobosco verò 84 errores, et alij permulti suorum expositorum, & sectatorum ostenduntur. rationibusq[uam] redarguuntur. Præcesserunt etiam quædam communia mathematica, necnon arithmetica, & geometrica principia, nonnullæq[uam] propositiones, de quibus in toto opere sæpe fit mentio: ac demum locupletissimus index eorum, quæ ipsa Cosmographia continentur .. (1585)](https://img.insideoutlibrary.com/img/200/ia-cosmographiainqv00baro-96-13.webp)