Casio CFX-9850GC PLUS Manuel de calcul - Page 2

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2-1 Basic Calculations

k k k k k Arithmetic Calculations

k k k k k Number of Decimal Places, Number of Significant Digits,

P.6

P.43

• 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

23 + 4.5 – 53 = –25.5

56 × (–12) ÷ (–2.5) = 268.8

(2 + 3) × 10

= 500

1 + 2 – 3 × 4 ÷ 5 + 6 = 6.6

100 – (2 + 3) × 4 = 80

2 + 3 × (4 + 5) = 29

(7 – 2) × (8 + 5) = 65

= 0.3

4 × 5

"(2+3)E2" does not produce the correct result. Be sure to enter this calculation as

shown.

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

matter how many are required.

A multiplication sign immediately before an open parenthesis may be omitted.

This is identical to 6 / 4 / 5 w.

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.

Operation

23+4.5-53w

56*-12/-2.5w

(2+3)*1E2w*

1+2-3*4/5+6w

100-(2+3)*4w

2+3*(4+5w*

(7-2)(8+5)w*

6 /(4*5)w*

Display

–25.5

268.8

500

6.6

0.3