Casio fx-991W Calculator User Manual


 
E-38
1
2
n+1
Functions Input Range
nPr
0Ϲ n Ϲ99, r Ϲ n (n, r is an integer)
1Ϲ {n!/(nr)!} Ϲ 9.999999999҂10
99
nCr 0Ϲ n Ϲ99, r Ϲ n (n, r is an integer)
Pol(x, y)
ȊxȊ, ȊyȊ Ϲ9.999999999҂10
49
(x
2
+y
2
) Ϲ9.999999999҂10
99
Rec(r,
)
0Ϲ r Ϲ9.999999999҂10
99
θ: Same as sinx, cosx
ȊaȊ, b, c 1҂10
100
°’ ”
0 Ϲ b, c
ȊxȊ1҂10
100
Decimal Sexagesimal Conversions
0
0
0
0
0
0
Ϲ ȊxȊ Ϲ999999
0
59
0
x0: –1҂10
100
ylogx100
x
y
x҃0: y0
x0: y҃n, (n is an integer)
However: –1҂10
100
ylogȊxȊ100
y0: x G 0
–1҂10
100
1/x logy100
x
y
y҃0: x0
y0: x҃2nѿ1, (n G 0; n is an integer)
However: –1҂10
100
1
/x logȊyȊ100
a
b
/c
ȊxȊ 1҂10
50
ȊyȊ 1҂10
50
SD ȊnȊ 1҂10
100
(REG) xn, yn, o, p
A, B, r : n G 0
xn1, yn1 : n G 0, 1
*Erros are cumulative with such internal continuous cal-
culations as
x
y
,
x
x , x!, and
3
x , so accuracy may be
adversely affected.
1
n
Total of integer, numerator, and denominator
must be 10 digits or less (including division
marks).