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Electronic calculator

A calculator and electronic technology, applied in computing, computers, digital computer components, etc., can solve the problems of data cannot be quickly positioned and input, increase the number of operations and errors, and cannot be quickly positioned, so as to achieve fast and accurate input and modification, digital The effect of accuracy and faster calculation speed

Inactive Publication Date: 2007-12-05
余丽萍
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AI Technical Summary

Problems solved by technology

However, this kind of calculator needs to repeatedly input many "0"s when inputting data, especially large and integer values, which increases the number of operations and the possibility of errors. The data cannot be quickly positioned and input, and when the input data is wrong , use the backspace key to go back step by step and clear the wrong digits before re-entering, or use the delete key to delete the entire data and then re-enter the entire data. It is very troublesome to modify the entered data, and it is not possible to quickly locate or move to Wrong digits for data modification

Method used

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Embodiment Construction

[0066] The present invention will be further described below in conjunction with the accompanying drawings and preferred embodiments.

[0067] An electronic calculator includes a computing device, an input device and a display device, the input device and the display device are connected to the computing device, the computing device obtains input information from the input device, and processes the input information, wherein the processing includes numerical Input and store, perform addition, subtraction, multiplication and division or other mathematical operations. Related information is displayed on the display device, and the related information includes input data, operators for scientific operations, process data, intermediate operation data and other information that needs to be displayed. The computing device can be selected single-chip microcomputer. Wherein said input device includes number keys 11, positioning keys 12 and function keys 13 arranged on the panel 1, a ...

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Abstract

The invention discloses an electronic calculator, which comprises the following parts: inputting device, calculating device, displaying device, wherein the inputting device connects the displaying device and calculating device; the calculating device receives the input information from the inputting device, which processes the input information to display the relative information on the displaying device; the inputting device contains numeric key and functional key; a group of locating key is set on the electronic calculator to locate the numeric key of the input number rapidly, which can input and modify number without pressing '0' key. The invention is accurate to input digit of data, which is convenient and fast to input data.

Description

technical field [0001] The present invention relates to an electronic calculator, and more particularly, to an electronic calculator especially suitable for computing relatively large values. Background technique [0002] The current calculators used by people, when manually inputting data, especially when the financial value is relatively large and round, it is easy to miss or enter more "0" and make mistakes, such as "10,000,000", "1" There are seven "0"s behind the "0", which not only increases the number of operations, but also confirms whether the number of "0" is correct after inputting "0". Or input less, the operation is cumbersome and error-prone, the data cannot be quickly positioned and input, and when the input data is wrong, use the backspace key to return step by step and clear the wrong digit before re-entering, or use the delete key to delete the entire data Then re-enter the entire data, it is very troublesome to modify the input data, it is not possible to...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F15/02
Inventor 余丽萍
Owner 余丽萍
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