DATAMATH CALCULATOR MUSEUM
|Date of introduction:||2007||Display technology:||LCD dot matrix|
|New price:||Display size:||4 * 16 characters|
|Size:|| 6.3" x 3.1" x
160 x 78 x 14 mm3
|Weight:||3.5 ounces, 100 grams||Serial No:||7D017|
|Batteries:||LR44||Date of manufacture:|
|AC-Adapter:||Origin of manufacture:||China|
|Program steps:||Courtesy of:||Joerg Woerner|
Casio introduced with the fx-115ES already in
2005 an advanced scientific calculator with a 2-line Natural Textbook Display
showing formulas and results exactly as they appear in the textbook. Texas
Instruments followed mid-2007 with the TI-30XS MultiView and Sharp joined the
group with its EL-W531 series introduced late-2007.
In June 2008 we know nine Sharp calculators sporting the WriteView Display:
|EL-W531B, EL-W531H, EL-W531HA||AAA battery||335|
|EL-W531G||Solar + LR44||335|
|Solar + LR44||556||52 constants, 44 conversions,
complex numbers, equation solver, matrix operations
In addition to this
so called "WriteView" mode the calculator sports a traditional "Linear" mode.
Dismantling the Sharp EL-W535B reveals a pretty common construction with a single printed circuit board (PCB). The PCB hides the single-chip calculating circuit under a small protection blob of black epoxy and drives the graphing display with a heat sealed fine-pitch connector.
Please compare the Sharp EL-535 with its competitors Casio fx-300ES and Texas Instruments TI-30XS MultiView.
If you have additions to the above article please email: firstname.lastname@example.org.
© Joerg Woerner, June 8, 2008. No reprints without written permission.