 |
| Display |
| Dot matrix |
12 x 1 |
Segment
(Mantissa + Exponent) |
10 + 2 |
Calculation results
(Mantissa + Exponent) |
10 + 2 |
| Physical |
| Battery (approx. life) |
AA x 2 (15,000 hrs.)
LR44 x 2 (2,500 hrs.) |
| Dimension (W x D x H) |
EL-531RH/531R: 84 x 157 x 21.7 mm
EL-509RH/509R: 84 x 145 x 16.5 mm
(EL-531RH/531R: 3-5/16" x 6-3/16" x 7/8"
EL-509RH/509R: 3-5/16" x 5-23/32" x 21/32") |
| Weight (approx.) |
EL-531RH/531R: 150 g
EL-509RH/509R: 97 g |
 |
| Memories | 7 |
| Functions | 183 |
Max. pending operation
(Calculations/Numeric values) | 16/8 |
| Equation |
| Multi-line playback |
Yes |
| Constant calculation |
Yes |
| Chain calculation |
Yes |
| Functions |
| FSE display |
Yes |
| Last digit correction |
Yes |
| Last entry recall |
Yes |
| Last answer recall | Yes |
 , +/-, EXP | Yes |
yx,  , x2,  , x-1 |
Yes |
| In, log, ex, 10x |
Yes |
| sin, cos, tan, sin-1, cos-1, tan-1 |
Yes |
| sinh, cosh, tanh, sinh-1, cosh-1, tanh-1 | Yes |
| n!, nPr, nCr | Yes |
| Random |
Yes |
| Fraction calculations |
Yes |
| Fraction/Decimal conversion |
Yes |
 r  , xy | Yes |
| DEG, DMS | Yes |
| Statistics |
| 1/2-variable statistics |
1/2 |
| Regression models |
1 |
|
