Casio FX-991ES Plus Scientific CalculatorThe Natural Display (Natural-V.P.A.M.) shows mathematical expressions like roots and fractions as they appear in your textbook, and this increases comprehension because results are easier to understand.Natural-V.P.A.M.Dot matrix display15 and 10 2 digits417 functionsEquation solver20 pairs of values for metric conversionCalculation with complex numbersCalc key (temporary formula memory)40 physical constantsMatrix/vector calculationNumerical integral & differential calculusRandom IntegersNew equation ModeFunction tableTwo-Way-Power DisplayDisplay type: 31 * 96 FULL DOTNatural displayAlgebraic input logic: Natural V.P.A.M.Number of characters/lines: 15/1 10/1Significand function: 10 2MemoryRepeat functionVariable memory: 9Number of storable programs: Calc / Solv buttonBasic mathematicsFunctions: 580Scientific constants: 40/Unit conversions: 164Bracket levels: 24Fraction calculations: 2 ModiAngle dimensions DEG/RAD/GRADConversions between >DEG/>RAD/>GRADCoordinate conversion PolTrigonometric functions sin/cos/tan/sin-1/cos-1/tan-1Hyperbolic functions sinh/cosh/tanh/sinh-1/cosh-1/tanh-1Exponent, log, In, 10x, exMathematical functions ?, x2, x-1, 1/x, x!, ?, xY, ?, x1/yCalculations based on n (hexadecimal/decimal/binary/octal)Logical operators (AND/OR/etc.)Calculations in the sexagesimal systemPercentage calculationsRemainder functionTechnical notation ENG/ENGCalculation of complex numbersRandom number generatorRandom integersCalculation of the minimum or maximum of a quadratic functionGCD/LCM functionBase-N calculations“Verify” test functionValue tableRecurring decimal fractionsStatisticsSummation of ?x, ?x2Summation of ?x, ?y, ?x2, ?y2, ?xyStandard deviations for grouped and ungrouped valuesDistribution functions (normal distribution and inverse normal distribution, binominal distribution, Poisson distribution)Regression analysisPermutations (nPr) and combinatorics (nCr)Matrix calculation/vector calculationREF/RREF functionEquation calculationInequality calculationDifferential and integral calculusNumerical integral calculusNumerical differential calculusOtherMenu language: germanAutomatic shut-offIdentical emulator software: optionalEnergy supply: Solar BatteryBattery type: 1 x LR-44Size (H x W x D mm): 11,1 x 80 x 162Weight: 95 g
