Casio fx-115ES - Manual (Page 70)

E-68
Functions Input Range
tanh x 0
Ϲ Ȋ x Ȋ Ϲ9.999999999҂10 99
tanh– 1 x 0 Ϲ Ȋ x Ȋ Ϲ9.999999999҂10 –1
log x /ln x 0  x Ϲ9.999999999҂10 99
10 x –9.999999999
҂10 99 Ϲ x Ϲ 99.99999999
e x –9.999999999
҂10 99 Ϲ x Ϲ 230.2585092
' x 0 Ϲ x  1 ҂ 10 100
x 2 Ȋ x Ȋ 1҂ 10 50
1/ x Ȋ x Ȋ 1҂ 10 100
; x G 0
3 ' x Ȋ x Ȋ 1҂ 10 100
x ! 0 Ϲ x Ϲ 69 ( x is an integer)
n P r
0
Ϲ n  1҂10 10 , 0
Ϲ r Ϲ n ( n , r are integers)
1 Ϲ { n !/( n – r )!}  1҂10 100
n C r
0 Ϲ n  1҂10 10 , 0 Ϲ r Ϲ n ( n , r are integers)
1
Ϲ n !/ r !
 1҂10 100
or 1
Ϲ n !/( n – r )!
 1҂10 100
Pol( x , y )
Ȋ x Ȋ, Ȋ y Ȋ Ϲ9.999999999҂10 99
x 2 + y 2 Ϲ9.999999999҂10 99
Rec( r , ␪)
0 Ϲ r Ϲ9.999999999҂10 99
θ: Same as sin x
Ȋ a Ȋ , b, c  1҂10 100
°’ ”
0
Ϲ b, c
Ȋ x Ȋ1҂10 100
Decimal
↔ Sexagesimal Conversions
0 °0'0"Ϲ Ȋ x Ȋ Ϲ9999999°59'59"
x Œ0: –1҂10 100  y log x 100
^( x
y
)
x ҃0: y Œ0
x 0: y ҃ n , ( m , n are integers)
However: –1 ҂10 100  y log Ȋ x Ȋ100
y Œ0: x G 0, –1 ҂10 100 1/ x log y 100
x'
y
y ҃0: x Œ0
y 0: x ҃2 n ѿ1, ( m G 0; m , n are integers)
However: –1
҂10 100 1/ x log
Ȋ y Ȋ100
a b /c
Total of integer, numerator, and denominator must be 10 digits or
less (including division marks).
m
2 n +1
2 n +1
m
• Precision is basically the same as that described under “Calculation Range and
Precision”, above.
• ^( xy ),
x
' y , 3 ', x !, n P r , n C r type functions require consecutive internal
calculation, which can cause accumulation of errors that occur with each
calculation.
• Error is cumulative and tends to be large in the vicinity of a function’s singular
point and inflection point.