2-1
Chapter 2 Manual Calculations
1. Basic Calculations
I Arithmetic Calculations
• Enter arithmetic calculations as they are written, from left to right.
• Use the key to input the minus sign before a negative value.
• 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
56 × (–12) ÷ (–2.5) = 268.8
56122.5U
(2+3)× 10
2
= 500
231$2U
2+3×(4+5)=29
2345U*
1
4×5
6
= 0.3
645U
*
1
Final closed parentheses (immediately before operation of the U key) may be omitted, no
matter how many are required.
I Number of Decimal Places, Number of Significant Digits, Normal
Display Range
[SET UP]
-
[Display]
-
[Fix] / [Sci] / [Norm]
• Even after you specify the number of decimal places or the number of significant digits,
internal calculations are still performed using a 15-digit mantissa, and displayed values are
stored with a 10-digit mantissa. Use Rnd of the Numeric Calculation Menu (NUM) (page
2-12) to round the displayed value off to the number of decimal place and significant digit
settings.
• Number of decimal place (Fix) and significant digit (Sci) settings normally remain in effect
until you change them or until you change the normal display range (Norm) setting.
Example 1 100 w 6 = 16.66666666...
Condition Operation Display
1006U
16.66666667
4 decimal places
K(SET UP) DD
(Fix)CU)U
16.6667
5 significant digits
K(SET UP) DD
(Sci)DU)U
1.6667
E
+01
Cancels specification
K(SET UP) DD
(Norm))U
16.66666667
*
1
Displayed values are rounded off to the place you specify.
*
1
*
1
*
1
*
1
2
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