Product Description
The FX-991DE X calculator with its 696 functions and impressive high-resolution LCD display is the most powerful technical-scientific pocket calculator available.
Its storage capacity has been quadrupled, allowing users to perform an extensive range of statistical calculations.
General information:• 696 functions• Display: Natural V.
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, LCD (Dot Matrix), 63 x 192 dots, 16/10 + 2 digits• Energy supply: Solar powered with back-up battery• With hard case• Size (H x W x D): 11.1 x 165.5 x 77 mm• Weight: 90 gFunctions:• High-resolution LCD display with 192 x 63 pixels• Natural display• 696 functions• Icon menu• Spreadsheets• QR code function¹• Solve equations and systems of equations in the fourth order• 4x4 matrices• Vector analysis• Integral/differential calculations• Calculations with technical units• 164 unit conversions• 47 scientific constants• User interface in German• Solar/battery operation• Distribution functions (normal distribution and inverse normal distribution, binomial distribution, Poisson distribution)• Solve inequalities• Calculation of the minimum and maximum of a function• Improved equation solver• Calculation of the echelon form and reduced echelon form of matrices (Ref/Rref)• Recurring decimal• Integer random numbers• Prime factorisation• Verify function: Verify equality between two expressions• Calculation of products with a finite number of factors• Parts of integers with remainder• Statistical calculation of quartiles• GCD and LCM function• Values table• Repeat function• 24 levels of parentheses• Variable memory (9)• SOTS/RCL key• Trigonometric and inverse trigonometric functions• Hyperbolic and inverse hyperbolic functions• Exponential functions 10x, ex• Inverse function x-1• Power and root functions xv, v, x2, xy• Logarithmic functions (log, ln)• Combination and permutation calculations• Random number generator• Conversion of polar coordinates into rectangular coordinates and inverse• Fraction calculator (two modes)• Conversion of sexagesimal into decimal and inverse• Calculations in degree, gon and radian• SCI/FIX/ENG function• List-based statistics• Statistics with a variable• Standard deviation• Statistics with two variables (regression functions)• Solve/Calc• Numerical integration• Numerical differentiation• Calculations with complex numbers• Base-n calculations
