CN201927019U - Hybrid arithmetic unit - Google Patents
Hybrid arithmetic unit Download PDFInfo
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- CN201927019U CN201927019U CN2010202809588U CN201020280958U CN201927019U CN 201927019 U CN201927019 U CN 201927019U CN 2010202809588 U CN2010202809588 U CN 2010202809588U CN 201020280958 U CN201020280958 U CN 201020280958U CN 201927019 U CN201927019 U CN 201927019U
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- arithmetic unit
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Abstract
A hybrid arithmetic unit comprises a shell (1), a keyboard (2), a display (3), an integrated circuit (IC) (4) and a power supply (5). The IC (4) comprises a single chip, a display driver, an expansion interface and a memory. The hybrid arithmetic unit is characterized in that the display (3) adopts a dot-matrix liquid crystal module; the display (3) and the keyboard (2) are connected to the single chip by the expansion interface; the software of four arithmetic operations and for solving linear equations in one unknown is solidified in the memory. The function is that the procedures and results of four arithmetic operations and linear equations in one unknown can be displayed.
Description
Affiliated technical field
The utility model is the hybrid arithmetic unit of a kind of demonstration hybrid operation and (the containing mark) process of solving an equation.Comprise all calculating of primary school period.
Background technology
At present, known counter, the counter that promptly enables to carry out the four fundamental rules hybrid operation, all can only display result and can not procedure for displaying, the counter of the four fundamental rules hybrid operation process of yet not flashing does not more show the process of solving an equation (containing bracket, the mark of round bracket).As if there is not tight logicality.
The utility model content
In order to address the above problem the utility model---hybrid arithmetic unit, the process that can show hybrid operation or solve an equation (containing bracket, the mark of round bracket).Computation process comes into plain view.
The technical scheme that the utility model adopted is: its structure is basic identical with general counter, still by shell (1), and keyboard (2), display (3), integrated circuit (4), power supply (5) is formed.Integrated circuit (4) comprises single-chip microcomputer, display driver, expansion interface, storer.It is characterized in that: display (3) adopts the lattice liquid crystal module; Display (3) is connected with single-chip microcomputer by expansion interface with keyboard (2); And a kind of four fundamental rules hybrid operation conciliate the software solidification of linear equation with one unknown in storer.Its function is: not only can calculate the result of the four fundamental rules hybrid operation of the integer that contains bracket, round bracket, decimal, mark, and can show its calculating process; Not only can separate composite equation of monobasic of the integer that contains bracket, round bracket, decimal, mark, and can show the process that it is solved an equation.Keyboard is the sub-fraction of computor-keyboard, the KeyAscii value of each key is identical with the KeyAscii value of computor-keyboard corresponding keys, different is: the KeyAscii value of CE key is the KeyAscii value of " C " key of computor-keyboard, the KeyAscii value of * key is the KeyAscii value of " * " key of computor-keyboard, the KeyAscii value of ÷ key be computor-keyboard " " the KeyAscii value of key.
The beneficial effects of the utility model are, the accuracy height of calculating, and logicality is strong, correctness that more can check and inspection written calculation step.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is the exterior structure figure of first embodiment of hybrid arithmetic unit.Each key on the keyboard is connected with storer, display by data circuit in inside.Wherein " 0 ", " 1 ", " 2 ", " 3 ", " 4 ", " 5 ", " 6 ", " 7 ", " 8 ", " 9 " are numerical key, "+", " ", " * ", " ÷ " are calculation keys, " [", "] ", " (", ") " are the bracket key, " X " is the unknown number key, and "=" is equals' key, and "/" is the score line key, " ← " is backspace key, " CE " is clear key, and " OF " is the start key, and " Enter " is enter key.When pressing corresponding key, just show corresponding key name on the display or carry out corresponding program.When pressing enter key,,, show the process of four fundamental rules hybrid operation on the display screen with the form of passing equation just arithmetical unit is carried out the four fundamental rules hybrid operation if there be not "=" and " X " on the display; If "=" and " X " arranged on the display, just arithmetical unit to equation solution, shows the process of solving an equation by the form of solving an equation on the display basically.
Fig. 2 is the circuit theory diagrams of hybrid arithmetic unit.Its circuit theory is identical with general counter with internal structure, great improvement is to have solidified on the storer software that linear equation with one unknown is conciliate in a kind of four fundamental rules hybrid operation, it comprises the hybrid operation of integer four fundamental rules, the hybrid operation of decimal four fundamental rules, the hybrid operation of mark four fundamental rules, show integer four fundamental rules hybrid operation process, show decimal four fundamental rules hybrid operation process, the four fundamental rules of flashing hybrid operation process; Separate the integer linear equation with one unknown, separate the decimal linear equation with one unknown, separate the mark linear equation with one unknown, show the process of separating the integer linear equation with one unknown, show the process of separating the decimal linear equation with one unknown, show the process of separating the mark linear equation with one unknown, separate linear equation with one unknown with distributive law of multiplication and popularization thereof ... supervisor.
As importing with keyboard: 6/7+1/8 * [2/3 ÷ (2/3-1/2)] * 4/5, press enter key after, show on the display:
6/7+1/8×[2/3÷(2/3-1/2)]×4/5
＝6/7+1/8×[2/3÷1/6]×4/5
＝6/7+1/8×4×4/5
＝6/7+1/2×4/5
＝6/7+2/5
＝44/35
≈1.257143
As importing with keyboard: 2.3X+2/3 * (1/5 * X+9) * 2+7/8=98, press enter key after, show on the display:
2.3X+2/3×(1/5×X+9)×2+7/8＝98
2.3X+(2/3×1/5×X+2/3×9)×2+7/8＝98
2.3X+2/3×1/5×X×2+2/3×9×2+7/8＝98
77/30×X＝681/8
X＝681/8÷77/30
X＝10215/308≈33.165584
Embodiment
The single-chip microcomputer of the minimalist configuration of the utility model hardware---integrated circuit (4) is with 8031, and expansion interface is 8255, and storer is 27256, and the dot matrix display of built-in drive (3) adopts MGLS-240128, and crystal oscillator is XXITL, and power supply (5) is V
CcDisplay (3) adopts MGLS-240128, and crystal oscillator is XXITL, and power supply (5) is V
CcDisplay (3) is connected with single-chip microcomputer 8301 by expansion interface 8255 with keyboard (2), storer 27256 is connected with single-chip microcomputer 8031 data buss, address general line by data-carrier store, the hybrid operation software solidification is in storer 27256, single-chip microcomputer 8031 external crystal oscillating circuit XXITL, add power supply (5), above each parts installation is welded on the circuit board, in the shell of packing into (1).(corresponding upgrading hardware is better.)
The utility model also can be used as mobile phone component.
Claims (1)
1. hybrid arithmetic unit, form by shell (1), keyboard (2), display (3), integrated circuit (4), power supply (5), integrated circuit (4) comprises single-chip microcomputer, display driver, expansion interface, storer is characterized in that: display (3) adopts the lattice liquid crystal module, and this display (3) is connected with single-chip microcomputer by expansion interface with keyboard (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202809588U CN201927019U (en) | 2010-07-24 | 2010-07-24 | Hybrid arithmetic unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202809588U CN201927019U (en) | 2010-07-24 | 2010-07-24 | Hybrid arithmetic unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201927019U true CN201927019U (en) | 2011-08-10 |
Family
ID=44430859
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202809588U Expired - Fee Related CN201927019U (en) | 2010-07-24 | 2010-07-24 | Hybrid arithmetic unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201927019U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103606320A (en) * | 2013-11-30 | 2014-02-26 | 颜丙臣 | Special binary equation set solver |
-
2010
- 2010-07-24 CN CN2010202809588U patent/CN201927019U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103606320A (en) * | 2013-11-30 | 2014-02-26 | 颜丙臣 | Special binary equation set solver |
| CN103606320B (en) * | 2013-11-30 | 2016-04-27 | 颜丙臣 | Special binary linear function group countermeasurer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110810 Termination date: 20130724 |