Casio FX-115ESPLS2-S 2nd Edition Scientific Calculator, 12-Digit Natural Textbook Display CSOFX115ESPLS2 FX-115ESPLS2-S

Natural Textbook Display shows formula and results exactly as they appear in the textbook and displays formulas and results simultaneously for 460 built-in functions.
Can transform a displayed decimal calculation result to a fraction or mixed number. It can also be converted back to the decimal form.
Perform addition, subtraction, multiplication and division.
Augment and absolute value calculations. Reciprocal, square and cube calculations. Conjugate complex number calculations.
Performs linear regression, quadratic regression, logarithmic regression, e exponential regression, ab exponential regression, power regression and inverse regression.
Solve simultaneous linear equations with two unknowns, simultaneous linear equations with three unknowns, quadratic equations and cubic equations.
The Matrix mode allows you to perform matrix operations on matrices with up to 3 rows and 3 columns.

Global Product Type	Calculators-Scientific
Power Source	Battery; Solar
Display Notation	Natural Textbook; Standard Scientific
Number of Display Digits	12
Display Characters x Display Lines	12 x 2
Memory	1 Independent; 8 Constant
Display Type	LCD
Case	Slide-On Hard-Case
Display Angle	Fixed
Display Characters Height	4 mm
Percent Key	No
Fraction Calculations	Yes
Fraction/Decimal Conversions	Yes
Decimal Function	Yes
+/- Switch Key	No
Currency Exchange Function	No
Metric Conversion	No
Backspace Key	Yes
Double Zero Key	No
Amortization	No
Base Number Calculations	No
Bond Calculations	No
Cash Flow Calculations	No
Complex Number Calculations	No
Confidence Interval Calculating	No
Cost/Sell/Margin	No
Date Calculations	No
Depreciation Calculations	No
Entry Logic	V.P.A.M.
Equation Editor	Yes
Grand Total Key	No
Graphing Functions	No
Higher Mathematical Functions	Advanced Statistical Distribution Calculations; Base-N; Derivatives; Inequalities; Integrals; Matrices; Vectors; Verify
Hyperbolic Functions	Yes
Hypothesis Testing	Yes
Interest Rate Conversion	No
Item Count Function	No
Linear Regression	Yes
Loan Calculation	No
Logical (Boolean) Operations	No
Markup/Down Key	No
Matrices	No
Percent Add-On/Discount	No
Polar-Rectangular Conversion	No
Probability (Random Number)	Yes
Simultaneous Equations	No
Square Root Key	Yes
Tax Calculation	No
Time-Value-of-Money	No
Time/Date	No
Trig/Log Functions	Yes
Variable Regression	Yes
Variable Statistics	Yes
Size	3.15 x 6.37
I/O Port	No
Replacement Batteries	LR44
Wall-Mountable	No
Package Includes	Slide-On Hard Case
Pre-Consumer Recycled Content Percent	0%
Post-Consumer Recycled Content Percent	0%
Total Recycled Content Percent	0%