Texas Instruments TI-60X
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 |
| ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
The model number would suggest that this Texas Instruments calculator is a variant of the TI-60. In reality, however, the TI-60X looks like a "light" version of the TI-68. The memory capacity is smaller, and a few features are missing, but most features are identical, and the appearance of the two machines is very similar.
One particularly odd thing about this calculator is its display: a low resolution dot matrix is used, character cells are 4 pixels wide and 5 pixels high. Because of this, numbers appear rather blocky, as seen in the picture to the right.
The formula programming model of this calculator is identical to that of the TI-68, with one minor difference: only 12 letters of the alphabet (A-I, X-Z) are available for naming variables and formulae. Formula programming is demonstrated by this implementation of Stirling's formula:
F=(X+1) yxX×√(2×π×(X+1))÷ e^(X+1)×(1+1÷12÷(X+1))