**TI86** Program file dated 06/23/04, 19:57 ® žZINFO4INžœìoëD1/D1/-SEE EQUATION EDITOR TO VIEW y1 AND ITS 1st DERIVITIVE y4.oëD4/D1/-THESE ARE THE EQUA- TIONS USED BY THIS PROGRAM.oLD1/4CO/3ToàToßz-