Trigonometric functions: In mathematics and in various fields of engineering, trigonometric functions are frequently used to solve different problems. Which is supposedly called an “obelus” - who knew? (x / y) Division, sometimes referred to as the quotient, is sometimes shown as a fraction, a “/” or the “÷” symbol. (x * y) Multiplication, the product or “times” is represented sometimes by an “x” and sometimes by an asterisk “*”. (x - y) Subtraction, the “minus” sign, or sometimes difference, is used to find the numerical separation between two numbers, thus the term “difference”. (x + y) Addition, also known as summing or, more colloquially, “plus” is used to sum numbers together.
Casio electrical engineering calculator japan portable#
This calculator is optimized for either desktop or mobile use, making it a portable powerhouse or a reliable at-the-desk tool.īasic operations: Even the most advanced scientific calculator needs the basics in order to be useful - here are the most commonly used and basic functions: With the inclusion of many different features, easy access to a wide variety of scientific constants.
* Contracted survey conductor: ASMARQ Co., Ltd.Ĭurves are incorporated into the design to give the calculator a natural, rounded look, and ripple-patterned grooves added to the back of the case provide a great grip.This free, easy-to-use scientific calculator can be used for any of your calculation needs but it is specialized for usage by engineers and scientists. In trials using prototypes, 83% of users reported “Easier key input than conventional calculators.*” This provides an ideal fit for the fingers of the right hand and allows the calculator to be used with a natural hand position. The all-new Ergonomic Step Keys structure was developed in response, arranging the keys in a step configuration to maintain the vertical keystroke direction. Analysis revealed that, even when using a sloped calculator, however, the keystroke direction stayed vertical. After testing slopes of up to 9°, the developers arrived at 3°. Beyond delivering easy key input, the designers were also careful to ensure that the new shape still appeared fitting for a calculator. A focus on the discovery that people’s hands tend to angle outward when they use a calculator then led to a new design with the keypad surface sloped to the right.
This included the movements and positions of hands and fingers, the direction in which keys are pressed, and the amount of muscle activity. Casio worked with Japan’s National Institute of Advanced Industrial Science and Technology to analyze what happens to the hand and fingers when people use a calculator. Surveys on how people use calculators and what needs they have led Casio to focus on users who do key input with three to five fingers of their right hand, and the case and key design was optimized for them to facilitate ease of key input. The new JE-12E and DE-12E Ergonomic Calculators are the product of a unique Casio vision: “Making the calculator fit the person, not the person fit the calculator.” Casio applied ergonomic expertise to create an innovative new case and key design, delivering an ideal fit in the hand and making key input easy. announced today the release of two new Ergonomic Calculators, the JE-12E and DE-12E, both featuring keypad surfaces sloped 3° to the right and keys arranged in a step configuration to facilitate ease of key input using the right hand.
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