Casio FX-87DE Plus 2nd Edition

Technical-scientific calculator with natural display, distribution functions and physical constants.

• natural display
• 502 functions
• Solar + battery (LR44)
• hard case
• Distribution functions: normal distribution and inverse normal distribution, binomial distribution, Poisson distribution
• table of values
• periodic decimal fraction
• 40 physical constants
• 164 unit conversions
• integer random numbers

Screen

• Type: 31*96 FULL DOT
• algebraic input logic: Natural V.P.A.M.
• Number of characters/lines: 15/1 + 10/1
• Display mantissa - exponent: 10 + 2

Storage

• repeat function
• Variable memory: 9

Elementary Mathematics

• Functions: 502
• scientific constants: 40
• Unit conversions: 164
• Fractions: 2 modes
• Angular dimensions: DEG/RAD/GRAD
• Conversions between >DEG/>RAD/>GRAD
• Coordinate conversion Pol ÷ Rec
• trigonometric functions sin/cos/tan/sin-1/cos-1/tan-1
• hyperbolic functions sinh/cosh/tanh/sinh-1/cosh-1/tanh-1
• exponent, log, In, 10x, ex
• Mathematical functions √, x2, x-1, 1/x, x!, √, xy, √, x1/y
• Calculations in base n (hexadecimal/decimal/binary/octal)
• logical operators (AND/Or..)
• Calculations in the sexagesimal system
• percentage calculation
• residual function
• prime factorization
• technical notation ENG/ENG
• random number generator
• ggT/kgV function
• Base-N calculations
• Check function "Verify"
• table of values
• repeating decimal fraction

Statistics

• Summation of ∑x, ∑x2
• Summation of ∑x, ∑y, ∑x2, ∑y2, ∑xy
• Standard deviations for clustered and unclustered values
• Distribution functions (normal distribution, inverse normal distribution, binomial distribution, Poisson distribution)
• regression analysis
• Permutation (nPr), Combinatorics (nCr)
• Differential and integral calculus

Miscellaneous

• Menu language: German
• automatic switch-off
• Identical emulator software: optional