Casio FX-9860GII - SOFTWARE VERSION 2-00 Краткое руководство по эксплуатации - Страница 7

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Casio FX-9860GII - SOFTWARE VERSION 2-00 Краткое руководство по эксплуатации
3. Examples
Basic Calculation
Example 1:
Solve the quadratic equation 3
Solve the equation by performing the following calculation:
(–5 + 5
2
+ 4 × 3 × 15) ÷ (2
(RUN • MAT)
(SET UP)
(Line)
(
)
Example 2:
To use the Pythagorean Theorem to determine the hypotenuse of a
right triangle
For a right triangle of side a = 5 cm and side b = 7 cm, determine the
hypotenuse by performing the following calculation: 5
(RUN • MAT)
(SET UP)
(Line)
(
)
Example 3:
To determine the remaining two sides of right triangle with a
hypotenuse of c = 10 cm and an angle of 36° at one end
Determine the length of the two sides by performing the following
calculations: 10sin(36), 10cos(36).
• Use the degree angle unit.
(RUN • MAT)
(SET UP)
(Line)
(Deg)
x
2
+ 5
x
– 15 = 0.
3).
Actual solution: 1.552970177
2
+ 7
2
.
Actual solution: 8.602325267
8.6 cm
Replay Function
The Replay Function lets you edit the contents of a previously performed
calculation and execute it again.
Pressing
or
will display the last calculation you performed so you can edit it.
• In the Math input/output mode, use the
to edit, and then
or
.
Example:
To execute the calculation 5
calculate
(RUN • MAT)
(SET UP)
(Line)
(
)
Actual solution: 5.877852523
5.9 cm
Actual solution: 8.090169944
8.1 cm
key to display the calculation you want
2
2
+ 8
, change the 8 to 10, and re-
E-5