Calcsandmore.com
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| Basic information | ||||||
|---|---|---|---|---|---|---|
| Name | ECO 30 | SC 2030 | EL-501X | 30 ECO RS | 30XA | EL-531TH |
| Manufacturer | Fiamo | Rebell | Sharp | TI | TI | Sharp |
| Color | Grey | |||||
| Type of packaging | Blister | Blister | ||||
| Basic features | ||||||
| Display Type | 1 line | 1 line | 1 line | 1 line | 1 line | 2 lines |
| Number of Display Digits | 10 | 10 | 10 | 10 | 10 | 10 |
| Power Source | solar | battery | battery | battery | battery | |
| Battery Type | None | L1131 x1 | LR54 x2 | LR44 x1 | AAA x1 | |
| Automatic Power Down | yes | yes | yes | yes | yes | yes |
| Keys | plastic | plastic | plastic | plastic | plastic | plastic |
| Protective Case | yes | yes | yes | yes | yes | yes |
| Dimensions (mm) | 154 x 81 x 16 | 141 x 75 x 14,5 | 144 x 75 x 10 | 155 x 80 x 15 | 155 x 80 x 16 | 161 x 80 x 15 |
| Weight (g) | 106 | 80 | 73 | 96 | 102 | 115 |
| EAN code | 3243480009942 | 3243480013352 | ||||
| Mathematical functions | ||||||
| Number of built-in features | 138 | 136 | 131 | 273 | ||
| Entry System | Algebraic (D.A.L.) | Algebraic (D.A.L.) | Algebraic (D.A.L.) | Algebraic (D.A.L.) | Algebraic (D.A.L.) | Algebraic (D.A.L.) |
| 1/x, x², square root, % | yes | yes | yes | yes | yes | yes |
| Pi Key | yes | yes | yes | yes | yes | yes |
| GCD, LCM | no | no | no | no | no | no |
| Integer division with remainder | yes | no | no | no | no | no |
| Fraction calculations | yes | no | no | yes | ||
| Function Table | no | no | no | no | no | no |
| Equation Solver (Newton) | no | no | no | no | no | no |
| System of Linear Equations | no | no | no | no | ||
| Matrix and Vector Calculations | no | no | no | no | ||
| Numeric Derivative and Integral | no | no | no | no | no | no |
| Complex numbers calculation | no | yes | yes | no | ||
| Training (DRILL) Function | no | no | no | no | no | no |
| Memory | ||||||
| Multi-Line Playback | no | no | no | no | no | yes |
| Last Answer Function | no | no | no | yes | ||
| Memory Variables | 3 | 7 | 1 | 3 | 3 | 9 |
| Notation and number of decimal places | ||||||
| FSE Display (SCI, FIX, ENG) | yes | yes | no | yes | yes | yes |
| 3-Digit Punctuation | no | no | no | yes | yes | yes |
| Statistical functions | ||||||
| 1-Variable Statistics | yes | yes | yes | yes | yes | yes |
| 2-Variable Statistics | no | no | no | no | no | yes |
| Regression Calculations | no | no | no | no | no | yes |
| Mean, Standard Deviation | yes | yes | yes | yes | yes | yes |
| nCr, nPr, n! | yes | yes | no | yes | yes | yes |
| Random numbers generator | no | yes | yes | no | no | yes |
| Gonometric functions | ||||||
| Deg, Rad, Grad Modes | yes | yes | yes | yes | yes | yes |
| Sin, Cos, Tan, and Inverses | yes | yes | yes | yes | yes | yes |
| Hyperbolic Functions | yes | yes | yes | yes | yes | yes |
| Sexagesimal and Decimal Conversions | yes | yes | yes | yes | yes | yes |
| Rectangular and Polar Coordinates Conversions | yes | yes | yes | yes | yes | yes |
| Numerical systems | ||||||
| Bin, Pen, Oct, Hex, Dec | no | yes | yes | no | no | yes |
| Logical Operation (AND, OR, NOT, NEG, XOR) | no | no | no | no | no | yes |
| Scientific functions | ||||||
| Metric Conversions | no | no | no | no | no | no |
| Physical Constants | no | no | no | no | no | no |
