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Sharp
EL-5804
1977-78
Aristo
M85S
1977

Casio fx-120

Manufacturer:CASIO Computer Co., Ltd. (Japan)
Mfg. date:1977-78
Size:8,4×16,2×2,4 cm
Weight (ready for operate):209 g
Type:scientific
Capacity:10/8+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:%calculation with percent +/-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:12 digit VFD (NEC LD8197A (FIP12A4A))
Power:2×AA-type battery
AD-2S 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

CASIO fx-120

Inside the fx-120
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