Casio DE-12E Ergonomic Desktop Calculator

CASIO DE-12E-WE (LARGE SIZE), High-Quality Ergonomic 12-Digit Desk Calculator

Ergonomically designed Calculator for right-hand users. The keypad is configured in an innovative staircase design, with 3° inclination from the right to the left side.

Compared to conventional desk calculators, this causes less underarm torsion and hand wrist rotation, as it adapts to natural finger / hand posture. The staircase key shape enables perfect vertical keystrokes and thus eases the key typing, lessens burden and helps avoiding Repetitive Strain Injuries. The staircase design keypad causes less strain of the pronator teres muscle, the extensor carpi radialis muscle and the flexor carpi radialis muscle.

The keys are extra easy to operate, and the key caps are ergonomically shaped (concave / convex) and are extra shock-absorbing for less fatigue of the fingers even in full-day operation. Silent Touch + Durable Anti-fade Plastic Keys: Markings do not wear, as being injected into the key.

functions include:

Numeric keypad configured with "0" key below "1" key.

Advanced Percentage Calculation - enabled by CASIO's unique input logic, showing absolute value of the % before adding to the base.

Currency Conversion with 3 storable rates.

Mark-Up Calculation via % key - calculating the sales price resulting from a chosen profit % demand.

Square Root Calculation.

Rounding Options - rounding down, or up, or to nearest, to 0/1/2/3/4/5 decimal digits selectable.

Constant Calculation.

GT Grand Total Sum Memory.

Summarizing 4-key Memory.

Backspace key - deletes last digits by digit, of input and even results.

+/- key for algebraic sign change.

00 double zero key.

3-Key Rollover - Input Buffer Memory, enables very fast input typing.

"Add-2" Input Mode - optionally skips the decimal point typing.