Casio fx-5400P
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-5400P
With a calculator manufacturer as prolific as Casio, there are bound to be some surprises. One such surprise is this fx-5400P pocket calculator/computer. When I got my hands on this model, I expected to see a standard keystroke-programmable scientific calculator; what I found instead is a BASIC-programmable pocket computer with a unique touch keyboard.
Although similar in many ways to other Casio BASIC programmables, the fx-5400P also has some unique features. Among them: 2-variable statistics; a scientific constants library; and scientific functions not commonly available on BASIC programmables, such as hyperbolic functions.
The programming model of the fx-5400P is straightforward Casio BASIC. It is demonstrated by the following program, which computes the logarithm of the Gamma function:
10 INPUT "X",X 20 G=1 30 S= SGNX 40 Z= ABSX 50 IF Z>9 THEN 90 60 G=G*Z 70 Z=Z+1 80 GOTO50 90 G=LN(Z* SQR(Z* HYP SIN(1/Z)+1/810/Z^6))*Z-Z+ LN(2*π/Z)/2- LNG 100 IF S>0 THEN 120 110 G= LN(-π/X/ SIN(π*X))-G 120 PRINT G, EXPG