The EL-520WBBK performs over 419 advanced scientific functions and
utilizes a 2-line display and Multi-Line Playback to make
scientific equations easier for students to solve. It is ideal for
students studying general math, algebra, geometry, trigonometry,
and calculus. In addition, it can be used for statistics, biology,
chemistry, and physics.
* Direct Algebraic Logic
Allows students to enter the elements of an expression in the exact
order they appear in the textbook.
* Extra Large Display
12 digit, 2 line display - 1 line equation and 1 line numeric.
* Multi-Line "Playback"
After getting an answer the user may then "playback" the expressions and
substitute new numeric values.
* Additional Features
Includes differential and integral calculus functions, 419 functions,
and hard case.

-- SPECIFICATIONs ----------------------------------
GENERAL - Display Type : Alpha-Numeric
Number of lines in display : 2
Logic : D.A.L.
Number of Functions : 419
Power Supply : Solar & Battery (LR44 x 2)
Hard Case : Yes
Continuous Calculation : Yes
Automatic Power Down : Yes
MATHEMATICS - F.S.E Display Format : Yes
Parenthesis Levels: 24
log, In (and inverse) : Yes
x, other symbols : Yes
Percent, Pi & other symbols : Yes
Fraction Calc : Yes
Solves 3 Simultaneous Equations : Yes
Complex Numbers : Yes
EDITING - Equation Playback : Yes
Last Answer Recall: Yes
Last Digit Correction : Yes
TRIGONOMETRY - Sin, Cos, Tan, Et Inverse: Yes
Hyperbolic Func Et Inverse : Yes
Deg/Rad/Grad Mode : Yes
DRG Conversion : Yes
SCIENCE - DMSDD : Yes
PR: Yes
Metric Conversions: 44
Physical Constants: 52
COMPUTER MATH- Dec., Hex., Oct., and Binary : Yes
Logic Operators : Yes
STATISTICS - One Variable : Yes
Two Variable : Yes
X Mean, Std. Deviation : Yes
Y Mean, Std Deviation : Yes
Regression Types : 6
Permutation and Combination : Yes
Factorial : Yes
Random Numbers : Yes
MEMORY- Number of Memories: 9
STO, RCL, and ANS Keys : Yes
Memory Calculations : M+,M-
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