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.

• Display type: dot matrix
• Number of display digits: 16
• Power source: battery (LR44 x 1)
• Automatic power down
• Keys: plastic
• Protective case
• Dimensions: 158 x 80 x 15mm
• Weight: 101g
• Built-in functions: 420
• Entry system: algebraic (D.A.L.)
• 1/x, x², square root, %
• Pi key
• GCD, LCM
• Quotient and remainder calculation
• Fractions
• Training (DRILL) function
• Multi-line playback
• Last answer recall (ANS)
• Memory variables: 9
• 3-digit punctuation
• 1 and 2-variable statistics
• Regression calculations: 7
• Mean, standard deviation
• nCr, nPr, n!
• Random numbers
• Deg, Rad, Grad Modes
• Sin, Cos, Tan, and Inverses
• Hyperbolic functions
• Sexagesimal and decimal conversions
• Rectangular and polar coordinates conversions
• Bin, Pen, Oct, Hex, Dec
• Logical operation (AND, OR, NOT, NEG, XOR)