Sharp EL-531VH
Brief History
The L series of the EL-531 calculator family almost approached the final stage of the evolution of scientific calculators with more and more mathematic functions, so the easy-to-use developments and the design became the primary goal for the future releases. The new features in the EL-531R and EL-531RH (1999) was the increased storage capacity which allows to recall previous calculations, therefore decrease the difference between standard and programmable calculators. From 2001, identical successor models EL-531V and EL-531VH distributed with brighter colors, lighter curvy shape and rearranged cursor moving keys.
| Manufacturer: | Sharp Corporation (Japan/China) |
| Mfg. date: | 2001-2004 |
| Size: | 7,9×16,6×1,9 cm |
| Weight (ready for operate): | n.a. |
| Type: | scientific |
| Capacity: | 10/10+2 digits (input/display) 12+2 digits (internal precision) |
| Operating logic: | formula-interpreting |
| Registers: | 2 standard (with saving the pending operation) 1 constant (with saving the pending operation) 16 bracket (with saving the pending operation) 7 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 LRtwo-variable statistics: linear regression nCrprobability calculations P-Rconverting coordinates between rectangular and polar systems n!factorial |
| Display: | 10+2+2 digit LCD |
| Power: | 2×AA-type battery |
| Test results: | trigonometry:result of sin-1(cos-1(tan-1(tan(cos(sin(60°)))))), reference value: 60. 60.0000006699 exponential:result of 0.999160000, reference value (first 14 digits): 3.0068804206375×10-70 3.00688090276E-70 |
EL-531VH
Inside of the EL-531VH
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