Chapter 2 Manual Calculations

1. Basic Calculations

IArithmetic Calculations

2

 

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

56 12 2.5U

(2 + 3) × 102 = 500

23 1$2U

2 + 3 × (4 + 5) = 29

23 45U*1

6

= 0.3

64 5U

 

4 × 5

 

 

 

 

 

*1 Final closed parentheses (immediately before operation of the Ukey) may be omitted, no matter how many are required.

INumber 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 ω 6 = 16.66666666...
Condition

Operation

Display

 

 

 

 

1006U

16.66666667

4 decimal places

K(SET UP) DD

*1

 

(Fix)CU)U

 

16.6667

5 significant digits

K(SET UP) DD

*1

 

(Sci)DU)U

 

1.6667E+01

Cancels specification

K(SET UP) DD

16.66666667

 

(Norm))U

 

 

 

*1 Displayed values are rounded off to the place you specify.

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