Sharp EL-W531TL Calculator, black, scientific, spot display, plastic cover

The EL-W531TL performs over 420 advanced scientific functions and utilizes WriteView Technology, 4-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, statistics, biology, chemistry, and general science.
Hard cover protects from scratches.

Basic Description
Display Type Dot Matrix
Number of Display Digits 16
Power Source Battery
Battery Type LR44 x1
Automatic Power Down yes
Keys Plastic
Protective Case yes

Mathematical Functions
Built-In Functions 420
Entry System Algebraic (D.A.L.)
1/x, x2, square root, % yes
Pi Key yes
GCD, LCM yes
Quotient and Remainder Calculation yes
Fractions yes
Function Table yes
Equation Solver (Newton) no
System of Linear Equations no
Matrix and Vector Calculations no
Numeric Derivative and Integral no
Complex Number Calculation no
Training (DRILL) Function yes
Memory
Multi-Line Playback yes
Last Answer Recall (ANS) yes
Memory Variables 9
Notation and Decimal Places
FSE Display (SCI, FIX, ENG) yes
3-Digit Punctuation yes
Statistics
1-Variable Statistics yes
2-Variable Statistics yes
Regression Calculations 7
Mean, Standard Deviation yes
nCr, nPr, n! yes
Random Numbers yes
Trigonometric Functions
Deg, Rad, Grad Modes yes
Sin, Cos, Tan, and Inverses yes
Hyperbolic Functions yes
Sexagesimal and Decimal Conversions yes
Rectangular and Polar Coordinates Conversions yes
Number Systems
Bin, Pen, Oct, Hex, Dec yes
Logical Operation (AND, OR, NOT, NEG, XOR) yes