36
2-1 Basic Calculations
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k Arithmetic Calculations
•Enter arithmetic calculations as they are written, from left to right.
•Use the - key to input a negative value.
•Use the - key for subtraction
•Calculations are performed internally with a 15-digit mantissa. The result is
rounded to a 10-digit mantissa before it is displayed.
• For mixed arithmetic calculations, multiplication and division are given priority
over addition and subtraction.
Example Operation Display
23 + 4.5 – 53 = –25.5 23+4.5-53w –25.5
56 ! (–12) " (–2.5) = 268.8 56*-12/-2.5w 268.8
(2 + 3) ! 10
2
= 500 (2+3)*1E2w*
1
500
1 + 2 – 3 ! 4 " 5 + 6 = 6.6 1+2-3*4/5+6w 6.6
100 – (2 + 3) ! 4 = 80 100-(2+3)*4w 80
2 + 3 ! (4 + 5) = 29 2+3*(4+5w*
2
29
(7 – 2) ! (8 + 5) = 65 (7-2)(8+5)w*
3
65
6
= 0.3 6 /(4*5)w*
4
0.3
4 ! 5
*
1
“(2+3)E2” does not produce the correct result. Be sure to enter this calculation as
shown.
*
2
Final closed parentheses (immediately before operation of the w key) may be omitted, no
matter how many are required.
*
3
A multiplication sign immediately before an open parenthesis may be omitted.
*
4
This is identical to 6 / 4 / 5 w.
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k Number of Decimal Places, Number of Significant Digits,
Exponential Notation Range
• These settings can be made while setting up the display format (Display) with
the set up screen.
•Even after you specify the number of decimal places or the number of signifi-
cant digits, internal calculations are still performed using a 15-digit mantissa,
and displayed values are stored with a 10-digit mantissa. Use Rnd (4) of the
Numeric Calculation Menu (NUM) to round the displayed value off to the
number of decimal place and significant digit settings.
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P.43
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