This file is made for the graphical calculater TI-80. On other computers it probably will not work. As known you have to type the functions word by word. Example: "CLRHOME" ain't "A-LOCK, C, L, R, H, O, M, E" but "PRGM, arrow right, 4". Any other way it will not work. Atlantic Software, 1996. -======================- Type first: -------------------------------------------------------------------------- PRGM, NEW, ENTER, A, B, C, ENTER -------------------------------------------------------------------------- Your programm starts here: -------------------------------------------------------------------------- INPUT "A: ",A INPUT "B: ",B INPUT "C: ",C Bý-4AC->D IF D<0 THEN DISP "Bý-4AC<0" STOP END DISP (-B+ûD)/2A DISP (-B-ûD)/2A