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Texas Instruments TI-84 Plus Manual

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Appendix B: Reference Information 393
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
Horizontal
(Xmax-Xmin) / 264 = @X
(Ymax-Ymin) / 80 = @Y
@X É… 2 = TraceStep (Function Mode)
Entering a value for @X or @Y from the home screen on a program gives:
Xmax = Xmin + @X * 264
Ymax = Ymin + @Y * 80
Graph-Table
(Xmax-Xmin) / 184 = @X
(Ymax-Ymin) / 144 = @Y
@X É… 2 = TraceStep (Function Mode)
Entering a value for @X or @Y from the home screen on a program gives:
Xmax = Xmin + @X * 184
Ymax = Ymin + @Y * 144
Function Range of Input Values
sin x, cos x, tan x
0 |x| < 10
12
(radian or degree)
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
Screen MODE
… 400 …


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