EL-503W is a Fraction/Scientific Calculator introduced by SHARP. It can help you understand mathematical concepts behind fraction calculation, such as simplification and reduction.
This manual introduces the Sharp EL-503W Fraction/Scientific Calculator, explaining its basic operation, key functions, and safety notes. It covers how to power the device on and off, enter fractions, perform statistical and equation calculations, and use special symbols such as SIMP.
Additional sections describe battery replacement procedures, the automatic power‑off feature, error handling, and detailed technical specifications. The document ends with contact information for further support.
| Supported calculations | General arithmetic, statistical, equation solvers |
|---|---|
| Mantissa length | up to 14 digits |
| Battery type | 1.5 V Alkaline (LR44 or equivalent) |
| Power consumption | 0.0001 W |
| Operating temperature | 0 °C – 40 °C |
| Dimensions (W × D × H) | 78.6 mm × 144 mm × 11.6 mm |
| Weight | Approx. 73 g |
Press the RESET switch on the back with the tip of a ball‑point pen or similar non‑sharp object.
It shows that a fraction can be simplified further.
Use the “/” key to place a slash between numerator and denominator, and the “⎕” key to separate the integer part from the fractional part of a mixed number.