Appendix B: Reference Information 399
Cursor coordinates are displayed as eight-character numbers (which may include a negative sign,
decimal point, and exponent) when
Float mode is selected. X and Y are updated with a maximum
accuracy of eight digits.
minimum and maximum on the CALCULATE menu are calculated with a tolerance of 1âL5; ‰f(x)dx is
calculated at 1âL3. Therefore, the result displayed may not be accurate to all eight displayed digits.
For most functions, at least five accurate digits exist. For
fMin(, fMax(, and fnInt( on the MATH
menu and
solve( in the CATALOG, the tolerance can be specified.
Function Limits
Function Range of Input Values
sin x, cos x, tan x
sin
L1
x, cos
L1
x
L1 x 1
ln x, log x
10
L
100
< x < 10
100
ex
L10
100
< x 230.25850929940
10x
L10
100
< x< 100
sinh x, cosh x
|x| 230.25850929940
tanh x
|x| < 10
100
sinh
L1
x |x| < 5 × 10
99
cosh
L1
x 1 x < 5 × 10
99
tanh
L1
x
L1 < x < 1
‡x (real mode)
0 x < 10
100
‡x (complex mode)
|x| < 10
100
x!
L.5 _x 69, where x is a multiple of .5
Function Results
Function Range of Result
sin
L1
x, tan
L1
x
L90¡ to 90¡ or Lp à 2 to p à 2 (radians)
cos
L1
x
0¡ to 180¡ or 0 to p (radians)
0 |x| < 10
12
(radian or degree)
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