User Manual

2-1

Chapter 2 Manual Calculations

1. Basic Calculations

k 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

56*-12/-2.5w

(2 + 3) × 10

= 500

(2+3)*1

52w

2 + 3 × (4 + 5) = 29

2+3*(4+5w*

(0.3)

'6c4*5w

6/(4*5)w

Final closed parentheses (immediately before operation of the w key) may be omitted, no

matter how many are required.

k 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 (NUMERIC) (page

2-14) 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.