Sharp EL-512II
| 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/log 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: Li-ion rechargeable battery Lreg: Linear regression (2-var. stats) mA: Milliamperes of current Mtrx: Matrix support NiCd: Nickel-Cadmium recharg. batt. NiMH: Nickel-metal-hydrite rech. batt. Prnt: Printer RTC: Real-time clock Sdev: Standard deviation (1-var. stats) 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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Sharp EL-512II
The EL-512II is an obvious predecessor to another calculator that I've had in my collection for some time, the EL-512H. Functionality-wise, the two calculators appear identical.

The Gamma function:
f(X)=
1⇒G
\(\hookrightarrow\)X>0•N→[
G÷X⇒G
X+1⇒X
\(\Lsh\)]
G√2π÷X×
(1+76.18009173÷(X+1)–86.50532033÷(X+2)+
24.01409824÷(X+3)–1.23173957÷(X+4)+
1.20865E-3÷(X+5)–5.4E-6÷(X+6))
(X+5.5)Yx(X+.5)×ex-(X+5.5)
