Basic Calculations - Casio FX-9750G PLUS User's Manual & Technical Reference

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
36
• 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
2
1 + 2 – 3 × 4 ÷ 5 + 6 = 6.6
100 – (2 + 3) × 4 = 80
2 + 3 × (4 + 5) = 29
(7 – 2) × (8 + 5) = 65
6
= 0.3
4 × 5
* 1 "(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
2
matter how many are required.
* A multiplication sign immediately before an open parenthesis may be omitted.
3
* This is identical to 6 / 4 / 5 w.
4
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
1
6.6
80
29
2
65
3
0.3
4