CN205050137U - Electronic calculator - Google Patents
Electronic calculator Download PDFInfo
- Publication number
- CN205050137U CN205050137U CN201520746234.0U CN201520746234U CN205050137U CN 205050137 U CN205050137 U CN 205050137U CN 201520746234 U CN201520746234 U CN 201520746234U CN 205050137 U CN205050137 U CN 205050137U
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- formula
- lcd display
- computing
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Abstract
The utility model relates to an electronic calculator is equipped with the shell, be equipped with routine calculation ware keyboard and LCD display screen on the shell, routine calculation ware keyboard and LCD display screen are connected with data processor respectively, the treater is external to have TF storage card, memory, the treater is connected with a lithium cell through the stabiliser, the lithium cell passes through the charger and a USB interface links to each other, USB interface, charger, stabiliser all can be directly and treater direct power feeding, the operation priority's of operator operator priority table has been saved to the TF storage card, LCD shows that screen display shows formula and operation process, abides by operator priority table. The utility model is suitable for a routine calculation ware repacking has the small and exquisite of routine calculation ware, and the button is as good as with the routine calculation ware, through according to the key combination, multiplexing, longly the operation such as press, can replace a plurality of button functions of routine calculation ware.
Description
Technical field
The utility model belongs to a kind of electronic calculator relating to the calculating process being applicable to study formula.
Background technology
Now, a kind of electronic type desk-top calculator of calculating process of applicable study formula is designed.In this electronic type desk-top calculator, when pressing ENTER showing under state as the formula of operand " key time, press this key at every turn, in each operator just in formula, only calculation process carried out to the operator that the priority in accordance with computing is selected successively.Further, when each priority in accordance with computing carries out the calculation process of above-mentioned formula, this is replaced into its solution to show by the formula key element that calculation process is crossed.Thereby, it is possible to stage by stage confirm computing carry out situation, until derive the operation result of above-mentioned formula.
In above-mentioned existing electronic type desk-top calculator, the operator precedence order in accordance with each operator comprised in formula has carried out each formula key element of calculation process, when carrying out its calculation process, shows formula after being all replaced into the solution of this calculation process at every turn.Therefore, although can confirm what kind of order to carry out the calculation process of the formula provided and the solution in each period thereof by, but much less, be replaced into the content of the original formula key element of solution, exist and cannot know the such problem of original formula self along with the carrying out of calculation process.
Utility model content
The purpose of this utility model is to solve the problem, propose a kind of electronic calculator, this electronic calculator has the small and exquisite of common counter, and button is as good as with common counter, by key combination, multiplexing, longly the operation such as to press, multiple keypress functions of common counter can be replaced.
The purpose of this utility model is achieved through the following technical solutions: electronic calculator, it is characterized in that: be provided with shell, described shell is provided with common calculator keyboard and LCD display, described common calculator keyboard is connected with processor data respectively with LCD display, processor is circumscribed with TF storage card, internal memory, described processor is connected with a lithium battery by voltage stabilizer, described lithium battery is connected with a USB interface by charger, described USB interface, charger, voltage stabilizer all can directly and processor directly power, described TF storage card stores operator priority order's table of the operator precedence order of operator, described LCD display display formula and calculating process, show in accordance with described operator priority order, perform the computing being formed in each formula key element of the formula that described LCD display shows successively, whenever performing the computing of described each formula key element successively, be identified in the formula key element performing this computing in the formula that described LCD display shows, make it be presented in described LCD display, whenever performing the computing of described each formula key element successively, described LCD display is made to show the solution corresponding with the formula key element performing this computing.
Described LCD display has tree-like text reading function concurrently, can show text according to hierarchic sequence, formulary etc. can be stored and conveniently consult, can utilize limited button, carry out Chinese charater input and retrieving information.
Described common calculator keyboard, by button and menu combination, can input various mathematical operation symbol and carry out computing, and according to certain rule, from all kinds of formula of edlin, only can need point out input parameter by counter, just can obtain result of calculation during calculating.
Described formulary comprises algebra system, trigonometric function, exponent arithmetic, logarithm operation, factorial.
The utility model has the small and exquisite of common counter, and button is as good as with common counter, by key combination, multiplexing, longly the operation such as to press, can replace multiple keypress functions of common counter; By button and menu combination, various mathematical operation symbol can be inputted and carry out computing; According to certain rule, from all kinds of formula of edlin, only can need point out input parameter by counter during calculating, just can obtain result of calculation; Counter has tree-like text reading function concurrently, can show text according to hierarchic sequence, formulary etc. can be stored and conveniently consult.Limited button can be utilized, carry out Chinese charater input and retrieving information.
Accompanying drawing explanation
Fig. 1 is external structure schematic diagram of the present utility model;
Fig. 2 is circuit structure block diagram of the present utility model;
Embodiment
Below in conjunction with drawings and Examples, the utility model is further described:
Embodiment: see accompanying drawing 1, 2, electronic calculator, be provided with shell 3, described shell is provided with common calculator keyboard 1 and LCD display 2, described common calculator keyboard is connected with processor data respectively with LCD display, processor is circumscribed with TF storage card, internal memory, described processor is connected with a lithium battery by voltage stabilizer, described lithium battery is connected with a USB interface by charger, described USB interface, charger, voltage stabilizer all can directly and processor directly power, described TF storage card stores operator priority order's table of the operator precedence order of operator, described LCD display display formula and calculating process, show in accordance with described operator priority order, perform the computing being formed in each formula key element of the formula that described LCD display shows successively, whenever performing the computing of described each formula key element successively, be identified in the formula key element performing this computing in the formula that described LCD display shows, make it be presented in described LCD display, whenever performing the computing of described each formula key element successively, described LCD display is made to show the solution corresponding with the formula key element performing this computing, described LCD display has tree-like text reading function concurrently, can show text according to hierarchic sequence, formulary etc. can be stored and conveniently consult, can utilize limited button, carry out Chinese charater input and retrieving information, described common calculator keyboard, by button and menu combination, can input various mathematical operation symbol and carry out computing, and according to certain rule, from all kinds of formula of edlin, only can need point out input parameter by counter, just can obtain result of calculation during calculating, described formulary comprises algebra system, trigonometric function, exponent arithmetic, logarithm operation, factorial.
Last it is noted that obviously, above-described embodiment is only for the utility model example is clearly described, and the restriction not to embodiment.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without the need to also giving all embodiments.And thus the apparent change of extending out or variation be still among protection domain of the present utility model.
Claims (1)
1. an electronic calculator, it is characterized in that: be provided with shell (3), described shell is provided with common calculator keyboard (1) and LCD display (2), described common calculator keyboard is connected with processor data respectively with LCD display, described processor is circumscribed with TF storage card, internal memory, described processor is connected with a lithium battery by voltage stabilizer, described lithium battery is connected with a USB interface by charger, described USB interface, charger, voltage stabilizer all can directly and processor directly power, described TF storage card stores operator priority order's table of the operator precedence order of operator, described LCD display display formula and calculating process, show in accordance with described operator priority order, perform the computing being formed in each formula key element of the formula that described LCD display shows successively, whenever performing the computing of described each formula key element successively, be identified in the formula key element performing this computing in the formula that described LCD display shows, make it be presented in described LCD display, whenever performing the computing of described each formula key element successively, described LCD display is made to show the solution corresponding with the formula key element performing this computing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520746234.0U CN205050137U (en) | 2015-09-25 | 2015-09-25 | Electronic calculator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520746234.0U CN205050137U (en) | 2015-09-25 | 2015-09-25 | Electronic calculator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205050137U true CN205050137U (en) | 2016-02-24 |
Family
ID=55343693
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520746234.0U Expired - Fee Related CN205050137U (en) | 2015-09-25 | 2015-09-25 | Electronic calculator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205050137U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107679004A (en) * | 2017-07-31 | 2018-02-09 | 肇庆学院 | A kind of figure stores calculator |
-
2015
- 2015-09-25 CN CN201520746234.0U patent/CN205050137U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107679004A (en) * | 2017-07-31 | 2018-02-09 | 肇庆学院 | A kind of figure stores calculator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160224 Termination date: 20180925 |