Standard Models | fx-82EX | fx-350EX | fx-570EX | fx-991EX |
---|---|---|---|---|
Specifications | ||||
Number of functions | 274 | 274 | 552 | 552 |
Power supply | AAA × 1 (R03) | AAA × 1 (LR03) | AAA × 1 (R03) | Two-way power (Solar + LR44 × 1) |
Approximate battery life | 2 years*1 | 1 year*1 | 2 years*1 | 2 years (LR44)*1 |
Dimensions H × W × D (mm) | 13.8 × 77 × 165.5 | 13.8 × 77 × 165.5 | 13.8 × 77 × 165.5 | 11.1 × 77 × 165.5 |
Approximate weight (g) | 100 | 100 | 100 | 90 |
Case style | Slide-on hard | Slide-on hard | Slide-on hard | Slide-on hard |
Dot matrix display | 192 × 63 dots | 192 × 63 dots | 192 × 63 dots | 192 × 63 dots |
Mantissa + exponent digits | 10 + 2 | 10 + 2 | 10 + 2 | 10 + 2 |
Internal operation digits | 15 | 15 | 15 | 15 |
Nested parentheses levels | 24 | 24 | 24 | 24 |
Utilities | ||||
Natural textbook display / NATURAL-V.P.A.M. |
![]() |
![]() |
![]() |
![]() |
Key rollover function | ![]() |
![]() |
![]() |
![]() |
Replay function | ![]() |
![]() |
![]() |
![]() |
Multi-replay functions | ![]() |
![]() |
![]() |
![]() |
Backspace | ![]() |
![]() |
![]() |
![]() |
CALC function | - | - | ![]() |
![]() |
SOLVE function | - | - | ![]() |
![]() |
Answer function | ![]() |
![]() |
![]() |
![]() |
Variables | 9 | 9 | 9 | 9 |
Auto power off | ![]() |
![]() |
![]() |
![]() |
UNDO | ![]() |
![]() |
![]() |
![]() |
Digit separator | ![]() |
![]() |
![]() |
![]() |
Multiline display | ![]() |
![]() |
![]() |
![]() |
Special Features | ||||
Base-n calculations (Binary/Octal/Hexadecimal) |
- | - | ![]() |
![]() |
Logical operations | - | - | ![]() |
![]() |
Engineering symbol calculations | - | - | ![]() |
![]() |
Engineering notation (ENG/ENG) | ![]() |
![]() |
![]() |
![]() |
Scientific constants | - | - | 47 | 47 |
Metric conversions | - | - | 40 | 40 |
Basic Functions | ||||
Trigonometric, inverse trigonometric (sin/cos/tan/sin-1/cos-1/tan-1) |
![]() |
![]() |
![]() |
![]() |
Hyperbolic, inverse hyperbolic (sinh/cosh/tanh/sinh-1/cosh-1/tanh-1) |
![]() |
![]() |
![]() |
![]() |
Exponential, logarithmic (log, ln, 10x, ex) |
![]() |
![]() |
![]() |
![]() |
Base specified logarithmic | ![]() |
![]() |
![]() |
![]() |
Square and square root (x2/ √ ) | ![]() |
![]() |
![]() |
![]() |
Cubic and cubic root (x3/ 3√ ) | ![]() |
![]() |
![]() |
![]() |
Power and radical root (xy/ x√ ) | ![]() |
![]() |
![]() |
![]() |
Fraction | ![]() |
![]() |
![]() |
![]() |
Percentage calculation (%) | ![]() |
![]() |
![]() |
![]() |
Rounding | ![]() |
![]() |
![]() |
![]() |
Sexagesimal ↔ decimal | ![]() |
![]() |
![]() |
![]() |
Display format (FIX, SCI) | ![]() |
![]() |
![]() |
![]() |
Angle unit (Degree, Radian, Gradian) | ![]() |
![]() |
![]() |
![]() |
Angle unit conversion (Degree, Radian, Gradian) |
![]() |
![]() |
![]() |
![]() |
Factorization into prime factors | ![]() |
![]() |
![]() |
![]() |
Ratio calculation | - | - | ![]() |
![]() |
Calculus | ||||
Differentiation calculation | - | - | ![]() |
![]() |
Integration calculation | - | - | ![]() |
![]() |
Algebra | ||||
Simultaneous equation | - | - | ![]() |
![]() |
Polynomial equation | - | - | ![]() |
![]() |
Inequality calculation | - | - | ![]() |
![]() |
Table function | ![]() |
![]() |
![]() |
![]() |
Matrix calculations | - | - | ![]() |
![]() |
Complex number calculation | - | - | ![]() |
![]() |
Geometry | ||||
Coordinate conversion (Pol, Rec) | ![]() |
![]() |
![]() |
![]() |
Vector calculations | - | - | ![]() |
![]() |
Probability | ||||
Combination, permutation (nCr, nPr) | ![]() |
![]() |
![]() |
![]() |
Statistics | ||||
Random numbers | ![]() |
![]() |
![]() |
![]() |
Random integers | ![]() |
![]() |
![]() |
![]() |
List-based STAT data editor | ![]() |
![]() |
![]() |
![]() |
Standard deviation | ![]() |
![]() |
![]() |
![]() |
Regression analysis | ![]() |
![]() |
![]() |
![]() |
Linear regression | ![]() |
![]() |
![]() |
![]() |
ab exponential regression | ![]() |
![]() |
![]() |
![]() |
Other regression | Log, Exp, Pwr, Inv, Quad | Log, Exp, Pwr, Inv, Quad | Log, Exp, Pwr, Inv, Quad | Log, Exp, Pwr, Inv, Quad |
Advanced statistical distribution calculations | - | - | ![]() |
![]() |
Spreadsheet | ||||
Spreadsheet | - | - | ![]() |
![]() |
other | ||||
QR code | - | - | ![]() |
![]() |
*1 If used 1 hour daily