[INFORMATION SYSTEMS INDEX]

	EL-531LH.
	High-class in school.

This calculator makes learning easy: With the EL-531LH school calculator, students quickly find the right answer. With the direct algebraic input logic (D.A.L.) calculation has been made as simple as the writing of the problems. Even comprehensive and complicated mathematical tasks can be solved easily. An ideal school calculator also for senior pupils. With battery operation.

Functions
Two-line display
Direct algebraic input logic
152 scientific functions
12-digit alphanumeric display
10+2-digit numeric display
Formula recall
Formula correction
Replacement of constants
3 constants memory
Result memory
Fractions
Calculation in sexagesimal system (hours/mins/secs)
Conversions
- DEG - RAD - GRAD(Gon)
- DEG - DMS
- POL - REC
1-dimensional statistics
Combination/permutation
Random numbers
3 error messages
Display of a syntax error position
Calculator protection with rigid plastic sliding cover