Casio fx-39
| Manufacturer: | CASIO Computer Co., Ltd. (Japan) |
| Mfg. date: | 1978 |
| Size: | 8,5×15×2 cm |
| Weight (ready for operate): | 191 g |
| Type: | scientific |
| Capacity: | 8/6+2 digits (input/display) 10+2 digits (internal precision) |
| Operating logic: | algebraic |
| CPU: | Hitachi HD38111A |
| Registers: | 2 standard (with saving the pending operation) 1 constant (with saving the pending operation) 4 bracket (with saving the pending operation) 1 memory (with aritmetic) |
| Features: | +/-change sign (direct entry of negative numbers) RVexchange registers (X-Y) Ffloating-point notation Sciscientific (exponential) notation a b/callows entry and display of fractions 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: | 9 digit VFD (NEC FIP 9D5) |
| Power: | 2×AA-type battery 3V adaptor |
| Test results: | trigonometry:result of sin-1(cos-1(tan-1(tan(cos(sin(60°)))))), reference value: 60. 59.991586 exponential:result of 0.999160000, reference value (first 14 digits): 3.0068804206375×10-70 3.0068806E-70 |
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