Fiamo ECO 30, Руководство пользователя

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2–EN
Display formats
The fixed point, scientific, and engineering formats use a fixed number of decimal
places to display numbers.
Example Function Key Display
Fix the display at 3 decimal
places.
[2nd] [FIX] [3]
0.000
Remove fixed-decimal setting. [2nd] [FIX] [•] 0.
Perform 2 ÷ 3 = 0.666666666
and select scientific notation.
2 [÷] 3 [=]
[2nd] [SCI]
0.666666666
6.6666666
–01
Restore standard notation
(floating decimal) format.
[2nd] [FLO]
0.
Correction
If you have made a mistake when entering a number (but you have not yet pressed
an arithmetic operator key), just press [CE/C] to clear the last entry then input it again,
or delete individual digits by using the backspace key
[←]
.
Overflow / Error conditions
A message “Error“ is shown on the display when any of the following conditions
occur and further calculation becomes impossible. Just press
[CE/C]
or
[ON/AC]
to
release those overflow or error indicator and the subsequent calculation can then be
performed.
• Number, result, or memory sum x, where |x| > 9.999999999 × 10
99
.
• More than 4 pending operations (2 when STAT is displayed) or more than 15 open
parentheses per pending operation.
• For x!: x not an integer between 0 and 69.
• For y
x
: y and x = 0 or y < 0 and x not an integer.
• For
x
√y: x = 0 or y < 0 and x not an odd integer.
• Dividing by 0.
• For √x: x < 0.
• For LOG or LN: x ≤ 0.
• For TAN: x = 90°, –90°, 270°, –270°, 450° etc.
• For SIN
–1
or COS
–1
: |x| > 1.
• For TANH –1 : |x| ≥ 1.
• For R ►P: x or y has exponent > 63.
• For nCr or nPr: n or r are not integers ≥ 0.
• More than 9999 statistical data points.
• Statistical data point x, where |x| ≥ 1E64.
• [2nd] [∑–] to remove the only data point.
• Calculating , σxn, σxn or σxn
–1
with no data points or σxn
–1
with one data point.
• [2nd] [CSR] with no data points.
Order of Operations
Each calculation is performed in the following order of precedence:
1. Expressions inside parentheses.
2. Single-variable functions that perform the calculation and display the result
immediately: sin, cos, tan, sin
–1
, cos
–1
,tan
–1
, log, ln, x
2
, √, p ,
3
√, x!, %, ENG,
reciprocals or angle conversions.
3. Combinations and permutations.
4. Exponentiation and roots.
5. Multiplication and division.
6. Addition and subtraction.