Casio fx-115ES PLUS User Manual page 13

Examples
Li
sin 30°= 0.5
ImllIEI
sin-'O.5 = 30°
ImllIEI
h
sinh1= 1.175201194
cosh-'1 = 0
1!i!!130
[IJlEI
i!!jJ I!i!!I(sin-') 0.5 [IJ lEI
ffiW!D(sinh)1
[IJIEI 1.175201194
ffiW lID(cosh-') 1 [IJ lEI 0
6. 1t/2
radians = 90°, 50 grads = 45°
lEI
m
1ffiI@ijj(1t)1E2[IJ i!!jJ f!!!J(DRG~)[IJ(')1EI
50
i!!jJ f!!!J(DRG~) (II (9) lEI
~
To
calculate e' x 2 to three significant digits (Sci 3)
IffiII!2i!J(SETUP) ILl (Sci) (II
rmm
ImII
2.97x102
2.97x1 Q2
3
4
4
1m@(e")5 <E>(jg 2 lEI
i!!jJ !W (el) 5 [IJ (jg 2 lEI
h
log,.1000 = log 1000 = 3
log216=4
§) 1000
[IJ lEI
§) 2 i!!jJ [IJ (,) 16 [IJ lEI
~2<E>161E1
h
To calculate
In 90 (= log, 90) to three significant digits (Sci 3)
i!!jJ I!@(SETUP)ILI(Sci)(II !W90[IJlEI 4.50x10.
L:z. 1.2
x 10' = 1200
rmm
1.2(jg10@)31E1
(1+1)'" = 16 rmm mIlE 1 [IJ @)21E 2 lEI
(5')'
=
15625
m 51£1[IJ i!!jJ 1 £I(x3) lEI
~=2 rmm 1m@)('Yo)5<E>321E1
ImII 51!!j) @)('Yo)32 [IJ lEI
To
calculate 12 x 3(= 312 = 4.242640687...) to three decimal
places (Fix 3)
i!!jJ1!2i!J(SETUP)!II(Fix)@ rmm
1200
16
15625
2
2
Gi) 2 <E> (jg 3 lEI
I!!j)IEI
Gi) 2 [IJ (&) 3 lEI
3-12
4.243
4.243
h
J:ln(x)
=
1
rmm 11iB!W ~ [IJ (X)[IJ <E> 1 <E> ~ @ijj(e)1EI
ImII 11iB!W
I!!W
II) (X)[IJ IffiI[I) (,)
1 1m [IJ (,) I!!W
@ijj(e)[IJ
lEI
h
To obtain the derivative at point x = rrJ2for the function y = sin(x)
..
rmm 1ffi111iB (£-.) I!i!!I ~ [IJ (X) [IJ
<E> I II 1m (@(It)<E>
2 lEI 0
ImII i!!jJ a s (£-.)@I!!W
[I) (X) [IJ
i!!jJ[IJ (,)i!!jJ(@(It)1II 2 [IJ lEI 0
E-23
0.5
30
&
L(X+I)=20
,.,
rmm 1ffiI~(:;:-)~II)(X)IEI<E>I<E>51E1 20
I!IZII I!!j)~(:;:-)~[I)(X)IE 1 1!!j)[I)(,)1
i!!jJ[I) (,)5 [I) lEI 20
90
45
Lh
IT(X + 1)
=
720
=1
rmm ~~(!H~II)(X)IEI<E>I<E>51E1 720
ImII ~~(~-)~[I)(X)IE 1 1!!j)[I)(,)1
1m [IJ(.)5
[I) lEI 720
h
To convert rectangular coordinates (12, 12) to polar coordinates
lEI
rmm ImIE(Pol)~2<E>i!!jJ[I)(,)~2<E>[IJ1EI r=2,11=45
I!IZII
i!!jJIE (Pol)Gi)2 m IffiIm(,)Gi) 2 [I) m lEI r= 2
11=45
Toconvert p olarcoordinates ( 12, 45°)to rectangular coordinates
lEI
rmm ImEJ(Rec)~2<E>i!!jJm(,)45mlEl X=1, V =1
&
(5 + 3) !
=
40320
m 51E 3 II) i!!jJ ~(x!)
lEI 40320
~
12-7Ix2=10
rmm
I!IZII
IffiI
ffiW(Abs) 2 EJ 7 <E> (&) 2 lEI
i!!jJ ffiW(Abs)2
EJ
7 [IJ (jg 2 lEI
10
10
~
To obtain three random three-digit integers
1000
I!!j) 8 (Ranll)lEI
459
lEI 48
lEI 117
(Results shown here are for illustrative purposes only. Actual results will differ.)
h
To generate random integers in the range of 1 to 6
I!!W
8(Ranlnt) 11m [IJ(,)6 [I) lEI
lEI
lEI
2
6
1
(Results shown here afe for illustrative purposes only. Actual
results will differ.)
~
To determine the number 01penmutationsand combinations
possible when selecting four people from a group 0110
Penmutations: 10 I!!j)(jg(nPr)41E1
Combinations: 10
I!!j)IE (nCr) 4 lEI
5040
210
&
To
perlonm the following calculations when Fix 3 is selected for fhe
number 0 1display digits:10.;.3 x 3 andRnd(10.;.3) x 3
ImII
1m I!2i!J(SETUP)!II (Fix) (II 10IE 3 (&) 3 lEI 10.000
IffiI@)(Rnd)10 I E 3 [IJ(&) 3 lEI 9.999
E-24
I
I