Casio Classpad 300
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 Classpad 300
Here's a nice gift that arrived from Germany just a few days ago (thank you, Sebastian!) A Casio Classpad 300.
This sophisticated calculator is very similar to HP's cancelled Xpander project, with one crucial difference: the Classpad 300 has full programmability. Like the Xpander, the Classpad 300 is really more than a calculator; it is more like a mathematical PDA with a full-blown operating system supporting built-in mathematics programs.
This particular device has obviously been used a lot, as evidenced by the wear and tear. Curiously, the misaligned menu label is not a result of abuse: I checked and it is attached at an angle internally to the backside of the display glass, clearly a manufacturing defect. Otherwise, the device is still working perfectly.
For now, I am still familiarizing myself with this very interesting machine, but of course I already constructed a Gamma function example. The following simple user-defined function computes the logarithm of the Gamma function for any argument with a positive real part:
ln(2.50662827563+225.5255 84619/x-268.295973841/(x+ 1)+80.9030806935/(x+2)-5. 0075786397/(x+3)+0.011468 4895435/(x+4))+(x-0.5)×l n(x+4.65)-x-4.65