Quadratic And Cubic Equation Solvers; Complex Number Calculations; Complex Number Entry - Sharp EL-5060 Operation Manual

QUADRATIC AND CUBIC EQUATION SOLVERS

Quadratic (ax
equation may be solved using this function.
Q Quadratic equation solver: m22
W Cubic equation solver:
• Press ® after entering each coefficient.
• The result will be displayed by pressing ® after entering
all coefficients. When there are more than 2 results, the next
solution will be displayed.
• When the result is an imaginary number, "xy" symbol will
appear. The display can be switched between imaginary and
real parts by pressing @≠.
• The results obtained by this function may include a margin of
error.
2
3x + 4x – 95 = 0
x1 = ?
x2 = ?
+ 3x + 7 = 0 5 ® 4 ® 3 ® 7
3 2
5x + 4x
x1 = ?
x2 = ?
x3 = ?

COMPLEX NUMBER CALCULATIONS

To carry out addition, subtraction, multiplication, and division
using complex numbers, press m3 to select the complex
number mode.
Results of complex number calculations are expressed in two modes:
Q @}: Rectangular coordinate mode (xy appears.)
W @{: Polar coordinate mode ( r θ appears.)

Complex number entry

Q Rectangular coordinates
x-coordinate + y-coordinate Ü
or x-coordinate + Ü y-coordinate
W Polar coordinates
r Ö θ
r: absolute value
2 + bx + c = 0) or cubic (ax
m22
3 ® 4 ®± 95
®
®
@®
m23
®
®
@≠
®
@≠
m23
θ: argument
– E-30 –
3 2
+ bx + cx + d = 0)
–6.333333333
–1.233600307
0.216800153
1.043018296
+
0.216800153
1.043018296
–
5.
5.
i
i
i
i
i