Texas Instruments TI-30X IIB
Brief History
The strongest, japanese competitors distributed calculators specifically for students from 1997, which has two-line display and operates with formula-interpreting method: calculation of the keyed expression started only when equal button is pressed. Texas Instruments identified advantages of this system, and in 1999 two new calculator was introduced: TI-30X IIB operates from battery, TI-30X IIS has solar cells. Some functions were grouped into menus, but basic functions were rearranged too.
| Manufacturer: | Texas Instruments (USA/China) |
| Mfg. date: | 1999- |
| Size: | 8,2×17,1×1,4 cm |
| Weight (ready for operate): | n.a. |
| Type: | scientific |
| Capacity: | 10/10+2 digits (input/display) 13+2 digits (internal precision) |
| Operating logic: | formula-interpreting |
| Registers: | 10 standard (with saving the pending operation) 24 bracket (with saving the pending operation) 5 memory (with aritmetic) |
| Features: | %calculation with percent +/-change sign (direct entry of negative numbers) Ffloating-point notation Fixfixed-point notation: the listed decimals can be chosen (0-9) Sciscientific (exponential) notation Engengineering notation a b/callows entry and display of fractions BSbackspace (right-shift) function Sqrsquare root x2square pivalue of pi (3.1415..) can be recalled 1/xreciprocal trigtrigonometrical functions (sin, cos, tan and inverses: arcsin, arccos, arctan) hyphyperbolic functions (sinh, cosh, tanh and inverses: ar sinh, ar cosh, ar tanh) DMS-DDconversion of decimal and sexagesimal numbers logexponential and logarithmical functions (10- and e-base) yxraising to power SDone variable statistics: calculating mean and standard deviation nCrprobability calculations P-Rconverting coordinates between rectangular and polar systems n!factorial |
| Display: | 12, 10+2 digit LCD |
| Power: | 1×CR2025 |
| Test results: | trigonometry:result of sin-1(cos-1(tan-1(tan(cos(sin(60°)))))), reference value: 60. 60.00000059532 exponential:result of 0.999160000, reference value (first 14 digits): 3.0068804206375×10-70 3.006880420988E-70 |
TI-30X IIB
Inside of the TI-30X IIB
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