Casio fx-991ZA Plus - Function Calculation Examples; Examples for Various Functions

EN-18
Precautions for Differential Calculation Only
• If convergence to a solution cannot be found when
tol input is omitted, the
tol value will be adjusted automatically to determine the solution.
• Non-consecutive points, abrupt fluctuation, extremely large or small points,
inflection points, and the inclusion of points that cannot be differentiated,
or a differential point or differential calculation result that approaches zero
can cause poor precision or error.
Tips for Successful Integration Calculations
When a periodic function or integration interval results in positive and
negative
f(x) function values
Perform separate integrations for each cycle, or for the positive part and the
negative part, and then combine the results.
When integration values fluctuate widely due to minute shifts in the
integration interval
Divide the integration interval into multiple parts (in a way that breaks areas
of wide fluctuation into small parts), perform integration on each part, and
then combine the results.
Examples
sin 30°= 0.5 bv s 30 )= 0.5
sin
−1
0.5 = 30° bv 1s(sin
−1
) 0.5 )= 30
sinh 1 = 1.175201194 wb(sinh) 1 )= 1.175201194
cosh
–1
1 = 0 wf(cosh
−1
) 1 )= 0
π /2 radians = 90°, 50 grads = 45° v
(15(π)/ 2 )1G(DRG')c(
r
)= 90
50 1G(DRG')d(
g
)= 45
To calculate e
5
× 2 to three significant digits (Sci 3)
1N(SETUP)7(Sci)3
B 1i(%) 5 e* 2 =
2.97×10
2
b 1i(%) 5 )* 2 = 2.97×10
2
log
10
1000 = log 1000 = 3 l 1000 )= 3
log
2
16 = 4 l 2 1)(,) 16 )= 4
B & 2 e 16 = 4
S Positive
S Negative
S Positive
S Negative
∫∫
a
b
f(x)dx =
a
c
f(x)dx +
∫
c
b
f(x)dx
Positive Part
(S Positive)
Negative Part
(S Negative)
∫∫
a
b
f(x)dx =
a
c
f(x)dx +
∫
c
b
f(x)dx
Positive Part
(S Positive)
Negative Part
(S Negative)
b
a
x
1
x
2
x
3
x
4
x
0
f (x)
b
a
x
1
x
2
x
3
x
4
x
0
f (x)
a
b
f(x)dx =
a
x
1
f(x)dx +
x1
x
2
f(x)dx +
.....
∫∫∫
x4
b
f(x)dx
∫
+
a
b
f(x)dx =
a
x
1
f(x)dx +
x1
x
2
f(x)dx +
.....
∫∫∫
x4
b
f(x)dx
∫
+
11
22
33
44
55