Sharp EL-5160S, Руководство по эксплуатации

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E-63
Quadratic and Cubic Equations
Quadratic (
ax 2
+
b
x
+
c
=
0
) or cubic (
ax
3
+
b
x
2
+
cx
+
d
=
0
) equations may be solved using the following
functions.
① Quadratic equation solver:
b 6 2
② Cubic equation solver:
b 6 3
Solving quadratic and cubic equations
• Press
b 6 2
or
b 6 3
.
• Coeffi cients for these equations can be entered in
the same manner as those for simultaneous linear
equations.
3 x
2
+
4 x
−
95
=
0
b 6 2
3
e
4
e S
95
x
=
?
e
X=
1
:
2
:
5
.
-
6
.
333333333
5
x
3
+
4
x
2
+
3
x
+
7
=
0
b
6 3
5
e
4
e
3
e
7
x
=
?
e
X=
1
:
2
:
-
1
.
233600307
0
.
216800153
±
1
.
043018296 K