• Error is cumulative and tends to be large in the vicinity of a function's
singular point and inflection point.
• The range for calculation results that can be displayed in π form when
using Natural Display is |x| < 10
6
. Note, however, that internal calculation
error can make it impossible to display some calculation results in π
form. It also can cause calculation results that should be in decimal form
to appear in π form.
Specifications
fx-570ES PLUS
Power Requirements:
AAA-size battery R03 (UM-4) × 1
Approximate Battery Life:
2 years (based on one hour of operation per day)
Power Consumption:
0.0002 W
Operating Temperature:
0°C to 40°C (32°F to 104°F)
Dimensions:
13.8 (H) × 77 (W) × 161.5 (D) mm
1
/
2
" (H) × 3" (W) × 6
3
/
8
" (D)
Approximate Weight:
105 g (3.7 oz) including the battery
fx-991ES PLUS
Power Requirements:
Built-in solar cell; button battery LR44 × 1
Approximate Battery Life:
3 years (based on one hour of operation per day)
Operating Temperature:
0°C to 40°C (32°F to 104°F)
Dimensions:
11.1 (H) × 77 (W) × 161.5 (D) mm
3
/
8
" (H) × 3" (W) × 6
3
/
8
" (D)
79
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