Casio ClassWiz CW fx-991CW Scientific Calculator
The fx-991CW ClassWiz is the latest enhancement to the scientific calculator. With an all-new quadruple graded LCD display, users will be able to easily find their cursor while writing and modifying expressions. The ClassWiz features circular, convex buttons that are appropriately spaced to prevent the mis-keying of information, and the button labels now feature glyphic representations of the functions they perform. The hard plastic case features an etched edge surface to prevent slipping in the hand. The ClassWiz can store and recall up to nine variables which can contain integers, computations, and functions. The variables will persist in the calculator's memory between sessions. All of the calculator's functions can be accessed through the convenient Math Catalog. The Math Catalog also hosts 47 scientific constants and 40 measurement conversions. By partnering the ClassWiz with an internet-capable mobile device, solutions can be graphed and visualized through ClassPad.net by scanning a QR code on the calculator's screen. Basic Information Product features Non Programmable Non Graphing Product type Non Programmable Non Graphing Number of digits 10 + 2 digits Liquid crystal display Natural textbook display Icon menu Dot matrix display High Resolution 4-gradation display Key characteristics Plastic keys Key functions Negative Sign Power Off Memory Variables: 9 (A,B,C.D.E.F.X.Y,M) Variables List Answer Memory Function memory Memory Protection Reset Function Power supply Solar & Battery Approximate battery life Main 2 years Auto Power Off Size (D × W × H) 162 × 77 × 10.7 mm Weight 95 g Accessories Hard Case Display Settings Display format settings Number Format: Fix Number Format: Sci Number Format: Norm Engineering Symbol Engineering Notation Fraction / Decimal Conversion Angle Unit (Degree, Radian, Gradian) Improper/Mixed Fraction Sexagesimal/Decimal Conversion Digit Separator Calculation Functions Basic calculation Basic Calculation Bracket Calculation Fraction Calculation Degree, Minute, Second (Sexagesimal) Calculations Reciprocal Calculation Percent Calculation (scientific calculator function) Ratio calculation Factorial Function π Irrational number calculation Rounding Function Advanced calculation Transcendental number: e Base-n calculation Logical Operators Complex number calculation Matrix calculations Vector calculations Ratio calculation Spreadsheet Numeric Table Simultaneous Equation Polynomial Equation Inequality Calculations List based STAT-data editor 1-Variable statistics 2-Variable statistics and regression Distribution Calculations Mathbox (Coin Toss, Dice Roll) Applied calculation Continuous Calculation Replay Function Multi-replay Function UNDO SOLVE Function Functions Features Basic functions Basic Mathematical Functions Independent Key x Absolute Value Calculation Square and square root (x2/√) Power and radical root (xy/x√) Trigonometric, inverse trigonometric (sin/cos/tan/sin–1/cos–1/tan–1) Hyperbolic, inverse hyperbolic (sinh/cosh/tanh/sinh–1/cosh–1/tanh–1) Exponential, logarithmic (log, ln, 10x, ex) Base specified logarithmic Coordinate Conversion Combination / Permutation Prime Factorization Random Number Generation Random Integer Generation Summation Differentiation Calculation Integration calculation Physics- and chemistry-related functions Scientific Constants Metric conversion function Statistical Functions Statistical data List based STAT-data editor Exam Compatibility Permitted in exams GCSE/AS/A Level Peripheral Devices Connection to peripheral devices QR Code Authenticity Check