Chapter 2 Manual Calculations; Basic Calculations - Casio FX-CG10 Software User's Manual

Chapter 2

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
56 × (–12) ÷ (–2.5) = 268.8
2
(2 + 3) × 10 = 500
2 + 3 × (4 + 5) = 29
6 3
= (0.3)
4 × 5 10
Final closed parentheses (immediately before operation of the w key) may be omitted, no
1
*
matter how many are required.
k Number of Decimal Places, Number of Significant Digits, Normal
Display Range
• 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.
Manual Calculations
56 *-12 /-2.5 w
(2 +3 )*1 E2 w
2 +3 *(4 +5 w*
$6c4*5w
<Linear input/output mode>
6 /(4 *5 )w
Operation
1
[SET UP] -
[Display]
2-1
- [Fix] / [Sci] / [Norm]
2