Third order equations
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Version: 1.0, 980205
Creator: Daniel Bergman.
Description: The program solves the equation x^3+ax+b=0.
Comments: "3\/" is the third order root, "\/" is the square root.
Known bugs: The program can't solve equations with more than one root.
            If such an equation is being inputed, the program terminates.
Size: 86 bytes.

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PROGRAM:THREORDR
DISP "X^3+AX+B=0"
INPUT "A?",A
INPUT "B?",B
(B/2)2+(A/3)3->A
IF A<0:STOP
\/A->A
DISP 3\/(-B/2+A)-3\/(B/2+A

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Copyright (C) 1998 by Daniel Bergman & Mattias Morén
http://ti80.burtrask.net