Faber-Castell TR3
Manufacturer: | Faber-Castell AG (West-Germany) |
Mfg. date: | 1973-76 |
Size: | 17×5,8×1,6 cm |
Weight (ready for operate): | 171 g |
Type: | scientific |
Capacity: | 8 digits (input/display) 8 digits (internal precision) |
Operating logic: | algebraic |
CPU: | Rockwell A4001CC |
Registers: | 2 standard (with saving the pending operation) 1 constant (with saving the pending operation) 1 memory (with aritmetic) |
Features: | +/-change sign (direct entry of negative numbers) RVexchange registers (X-Y) Ffloating-point notation Sqrsquare root pivalue of pi (3.1415..) can be recalled 1/xreciprocal trigtrigonometrical functions (sin, cos, tan and inverses: arcsin, arccos, arctan) logexponential and logarithmical functions (10- and e-base) yxraising to power |
Display: | 9 digit LED |
Power: | TRA/N battery pack |
Test results: | trigonometry:result of sin-1(cos-1(tan-1(tan(cos(sin(60°)))))), reference value: 60. 62.57928 exponential:result of 0.999160000, reference value (first 14 digits): 3.0068804206375×10-70 - |
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