Casio fx-5000F
Datasheet legend
Ab/c:
Fractions calculation
AC: Alternating current BaseN: Number base calculations Card: Magnetic card storage Cmem: Continuous memory Cond: Conditional execution Const: Scientific constants Cplx: Complex number arithmetic DC: Direct current Eqlib: Equation library Exp: Exponential/logarithmic functions Fin: Financial functions Grph: Graphing capability Hyp: Hyperbolic functions Ind: Indirect addressing Intg: Numerical integration Jump: Unconditional jump (GOTO) Lbl: Program labels LCD: Liquid Crystal Display LED: Light-Emitting Diode Li-ion: Lithium-ion rechargeable battery Lreg: Linear regression (2-variable statistics) mA: Milliamperes of current Mtrx: Matrix support NiCd: Nickel-Cadmium rechargeable battery NiMH: Nickel-metal-hydrite rechargeable battery Prnt: Printer RTC: Real-time clock Sdev: Standard deviation (1-variable statistics) Solv: Equation solver Subr: Subroutine call capability Symb: Symbolic computing Tape: Magnetic tape storage Trig: Trigonometric functions Units: Unit conversions VAC: Volts AC VDC: Volts DC |
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Casio fx-5000F
Another interesting Casio calculator: this one provides, in addition to a fairly generous 675-step formula memory, up to 128 built-in formulae from a variety of scientific disciplines. Although the programming model is simplistic (straightforward mathematical formulae can be stored, but there is no conditional evaluation, loops, or other true programming features) the machine lacks the limitations found on many similar calculators: for instance, an individual formula can occupy all available room in formula memory. Thanks to this, it is actually possible to implement something as complex as the Gamma function on this device:
(1+76.18009173/(Ans+1)-86.50532033/(Ans+2)+
24.01409824/(Ans+3)-1.231739572/(Ans+4)+
1.208650974E-3/(Ans+5)-5.395239385E-6/(Ans+6))
√2π/Ans×(Ans+5.5)xy(Ans+.5)/e(Ans+5.5)
The method used here makes the formula operate on the result of any previous calculation, rather than prompting for the values of any independent variables.