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If the quadratic equation has no real solutions, or a cubic has only 1 real solution, then the calculator will show the
result depending on how it is set up.
The graph lies entirely
above the x-axis.
To show complex roots, press d.
Enter SETUP by pressing Lp
and scroll to Complex Mode, then
choose the appropriate notation
(w or e).
The graph lies entirely
above the x-axis.
Complex roots are
shown.
To show real roots only, press
d. Enter SETUP by pressing
Lp. Scroll to Complex Mode,
then press q.
The function has complex
roots.
To show real roots only, press
d. Enter SETUP by pressing
Lp. Scroll to Complex Mode,
then press q.
The graph only crosses
the x-axis once.
To show complex roots, press d.
Enter SETUP by pressing Lp
and scroll to Complex Mode, then
choose the appropriate notation
(w or e).
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