Casio fx-7400G PLUS Appendix - Manual (Page 11)

203
Appendix
Internal
digits
15 digits
"
"
"
"
Precision
As a rule,
precision is
±1 at the
10th digit.
*
"
"
"
"
Notes Input ranges
| a |, b , c < 1
× 10 100
0 < b , c
| x | < 1
× 10
100
Sexagesimal display:
|
x | < 1
× 10 7
x > 0:
–1
× 10 100 < y log x < 100
x = 0 : y > 0
x < 0 :
y = n , ( n is an integer)
However;
–1
× 10 100 < y log | x | < 100
y > 0 : x G G G G G 0
–1
× 10 100 < log y < 100
y = 0 : x > 0
y < 0 : x = 2 n +1,
( n G G G G G 0, n is an integer)
However;
–1
× 10 100 < log | y | < 100
Total of integer, numerator
and denominator must be
within 10 digits (includes di-
vision marks).
| x | < 1
× 10
50
| y | < 1
× 10 50
| n | < 1
× 10 100
x σ
n , y σ
n , x, y, a , b , c , r :
n G G G G G 0
x σ
n –1
, y σ
n –1
: n G G G G G 0, 1
1
–––––
2 n +1
1
––
x
1
––
n
1
––
x
Function
° ’ ”
←
° ’ ”
^ ( x
y
)
x y
ab/c
STAT
* For a single calculation, calculation error is
±1 at the 10th digit. (In the case of exponential display,
calculation error is
±1 at the last significant digit.) Errors are cumulative in the case of consecutive
calculations, which can also cause them to become large. (This is also true of internal consecutive
calculations that are performed in the case of ^(
x y
),
x y , x ! , 3 , n P r , n C r , etc.)
In the vicinity of a function’s singular point and point of inflection, errors are cumulative and may
become large.