CN115757256A - Calculator showing steps to solve a problem - Google Patents

Abstract

The invention relates to a calculator for displaying problem solving steps, which comprises a shell, an operation processor and a storage module which are arranged in the shell, and a display module and a key module which are arranged on the shell and are respectively connected with the operation processor through electric signals, wherein the storage module is connected with the operation processor through electric signals, the operation processor performs operation on an input calculation formula and obtains a calculation step and a calculation result, and the operation processor controls the display module to display the calculation result and the calculation step of the calculation formula. The calculator for displaying the problem solving step can directly display the calculation result and the calculation step when a calculation formula is calculated, does not need to store the calculation result and the calculation step as historical data, meets the requirement of a user for checking the calculation step corresponding to the calculation formula in time, does not need to carry out operation steps of calling and selecting the historical data, and is very simple to operate.

Description

Calculator showing steps to solve a problem

technical field

The invention relates to a calculator displaying the steps of solving a problem.

Background technique

Calculator is a commonly used calculation tool. Based on different requirements, there are general calculators for common numerical calculations, and scientific calculators for functional calculations. In particular, scientific calculators can perform more complex calculations, and play an important role in calculations in school studies and office work. Existing scientific calculators usually directly display the calculation results based on the input calculation content, and the calculation process data are either not recorded directly, or are only historically recorded in the memory without being directly displayed. For example, the Chinese invention patent application "Management Method of Mobile Calculator" with the application publication number CN104469011A (application number 201410766925.7), in which the management method of the mobile phone calculator is disclosed, only the calculation results are displayed on the calculation section of the mobile phone computer, The calculation process and calculation results obtained according to the data instructions and operation instructions are stored in the memory of the mobile phone as historical records. That is, the calculation process cannot be displayed on the calculation interface during the real-time calculation process, and the user needs to view the historical records to obtain the data of the calculation process. Especially for students who are still in the learning stage, they cannot obtain the calculation process data in real time when performing calculations, and cannot learn the problem-solving steps well. Even if the historical records are called, they still need to recall the input calculation formulas, and then use Computing process data for matching is not intuitive and the operation is relatively complicated.

Contents of the invention

The technical problem to be solved by the present invention is to provide a calculator for displaying problem-solving steps in view of the above-mentioned prior art, which can display the content of problem-solving steps without calling historical data when performing an operation of a calculation formula.

The technical scheme adopted by the present invention to solve the above-mentioned technical problems is: a calculator displaying the steps of solving a problem, comprising a housing, an arithmetic processor and a storage module arranged in the housing, arranged on the housing and connected to the arithmetic processor respectively A display module and a button module connected by electrical signals, the storage module is connected to the arithmetic processor by electrical signals, and it is characterized in that: the arithmetic processor performs calculations on the input calculation formula and obtains calculation steps and calculation results, and the arithmetic processor controls the display module Displays the calculation result and calculation steps of the calculation formula.

In order to meet different viewing requirements, the computing processor controls the display module to display calculation results and calculation steps through different display pages.

Preferably, the arithmetic processor controls the display module to display the calculation formula at the same time, and controls the display module to display the calculation formula and the calculation result on the same page.

In order to avoid affecting the intuitive acquisition of calculation steps by users who do not need to view the calculation steps or need time to think, and affect the efficiency of viewing or the need for thinking, the operation processor controls the page used to display the calculation results in the display module to be located before the page displaying the calculation steps.

In order to remind the user to view the calculation steps conveniently, the operation processor controls the display module to display a prompt message reminding the user to turn down the calculation step display page on the page for displaying the calculation results.

Preferably, after the calculation processor completes the operation of the calculation formula, it obtains the number of rows N of the calculation step. If N>N0, N0 is the maximum number of rows displayed by the display module on a single page, it controls to display the content of the calculation step in pages.

In order to prevent the user from missing the content of the calculation steps, when it is necessary to display the content of the calculation steps in pages, a prompt message reminding the user of the number of pages is displayed on each display page.

Preferably, the arithmetic processor controls the display module to display the calculation result of the calculation formula first, and then controls the display module to display the calculation steps based on the calculation step display trigger command input by the key module.

Preferably, the calculation step shows that the trigger command is a down key signal input through the key module.

Compared with the prior art, the present invention has the advantage that: the calculator displaying the problem-solving steps in the present invention can directly display the calculation result and the calculation steps when performing calculation of a calculation formula, without storing it as Historical data meets the needs of users to view the calculation steps corresponding to the calculation formula in a timely manner, without the need for historical data retrieval and selection steps, and the operation is very simple.

Description of drawings

FIG. 1 is a block diagram of a calculator in an embodiment of the present invention.

Fig. 2 is a working flow chart of the calculation formula operation performed by the calculator in the embodiment of the present invention.

Fig. 3 is the display content of calculation formula operation performed by the calculator in the embodiment of the present invention.

Detailed ways

The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

As shown in Fig. 1, the calculator of displaying problem-solving steps in the present embodiment includes a casing, an arithmetic processor and a storage module arranged in the casing, and a computer that is arranged on the casing and is connected to the arithmetic processor with electrical signals respectively. The display module, the button module and the storage module are connected with the operation processor by electrical signals.

The arithmetic processor among them can carry out various calculation formula operations, such as general addition, subtraction, multiplication and division operations, function operations, inequality operations, equation operations, etc. The storage module can store various data, for example, it can store input calculation formulas, calculation steps and calculation results and other data. Real-time data transmission is performed between the storage module and the computing processor. The display module is capable of displaying required display information based on the control of the arithmetic processor. The key module includes various keys such as number keys, operation symbol keys, and moving direction keys.

As shown in Figure 2 and Figure 3, when the calculator is in use, the calculation formula that needs to be calculated is input through the key module, and the calculation processor stores the input calculation formula in the storage module, and the calculation processor for the input calculation formula Perform calculations and obtain calculation steps and calculation results. The calculation processor stores the calculation steps and calculation results in the storage module, and retrieves the corresponding data from the storage module based on the display information required by the set display program, and controls the display module. Display the corresponding information. In this embodiment, the arithmetic processor controls the display module to display calculation formulas, calculation results and calculation steps of the calculation formulas. That is to say, the display of the calculation result and calculation steps by the calculator is based on the real-time calculation content when the calculator is not turned off and the next calculation formula operation is not performed.

In this way, the calculator that displays the problem-solving steps can directly display the calculation results and calculation steps when performing a calculation of a calculation formula, without storing them as historical data, which satisfies the user's need to view the calculation steps corresponding to the calculation formula in a timely manner The operation is very simple without the need for historical data retrieval and selection.

Usually based on different user groups, the display requirements for calculation steps are also different. For example, for student user groups, it is usually necessary to understand the specific calculation steps of a calculation formula, so as to achieve the purpose of learning. For some social workers, usually only need to obtain the calculation results, and only need to view the specific calculation steps when necessary. Based on this, different display modes can be set, such as a display mode, which can only be triggered to control the calculation steps display. Another display mode enables direct display of calculation steps. One of the display modes can be set in the calculator, or two display modes can be set for the user to select and determine.

For the display mode in which the display of calculation steps is controlled by means of triggering, the arithmetic processor controls the display module to display the calculation results of the calculation formula first, and then displays the trigger command based on the calculation steps input by the key module to control the display module to display the calculation steps. For example, the calculation step display trigger command can be set as the down key signal input through the key module. When the operation module obtains the display trigger command signal of the calculation step, the data of the calculation step in the storage module is retrieved for further control and displayed through the display module.

For the display mode in which the calculation steps are directly displayed, the arithmetic processor controls the display module to directly and simultaneously display the calculation results and the calculation steps. However, in order to meet different viewing needs of different groups of people, the computing processor controls the display module to display calculation results and calculation steps through different display pages. And the operation processor controls the page for displaying calculation results in the display module to be located before the page for displaying calculation steps. In addition, in order to obtain the corresponding relationship between the calculation result and the calculation formula conveniently, the arithmetic processor controls the display module to display the calculation formula at the same time, and controls the display module to display the calculation formula and the calculation result on the same page. On the one hand, it is convenient to check whether the calculation formula is entered correctly; on the other hand, it is possible to better understand the corresponding relationship between the calculation formula and the calculation result.

With this display method, for users who do not need to view the calculation steps, they do not need to flip through the page displaying the calculation steps during use, which improves the viewing efficiency. For users who need to view the calculation steps, the user can continue to browse the page displaying the calculation steps by simply operating the key data, which is easy to operate. In addition, some users may need to think about the calculation steps for a period of time when they see the calculation results. You can wait for your own thinking and then look at the page showing the calculation steps. This satisfies the diverse needs of users for viewing calculation steps.

In order to conveniently remind the user that there is a page for displaying the calculation steps, the operation processor controls the page for displaying the calculation results in the display module to display prompt information reminding the user to turn down the page for displaying the calculation steps. In this embodiment, the prompt information is "scroll down to display the problem-solving steps".

In addition, after the calculation processor completes the calculation of the calculation formula, it can obtain the calculation step row number N. If N>N0, N0 is the maximum number of rows displayed by the display module on a single page, then control the page-by-page display of the calculation step content. In order to prevent the user from missing the content of the calculation steps, when it is necessary to display the content of the calculation steps in pages, a prompt message reminding the user of the number of pages is displayed on each display page. For example, the up arrow can be displayed on the top edge of the page, the down arrow can be displayed on the bottom edge, and the last page display page does not display the down arrow. It can also be prompted by page numbers. In this way, the user can conveniently view the complete calculation steps under the prompt of the prompt information.

The calculator for displaying problem-solving steps in the present invention can directly display the calculation result and the calculation steps when performing a calculation of a calculation formula, without storing it as historical data, which satisfies the user's need to view the calculation corresponding to the calculation formula in time There is no need for steps to retrieve and select historical data, and the operation is very simple.

Claims (9)

1. A calculator showing the steps of solving a problem, comprising a housing, an arithmetic processor arranged in the housing, a storage module, a display module and a key module that are arranged on the housing and are respectively connected with the electrical signal of the arithmetic processor, and the The storage module is electrically connected to the computing processor, and the feature is that the computing processor performs calculations on the input calculation formula and obtains calculation steps and calculation results, and the calculation processor controls the display module to display the calculation results and calculation steps of the calculation formula. 2. The calculator for displaying problem-solving steps according to claim 1, wherein the calculation processor controls the display module to display calculation results and calculation steps through different display pages. 3. The calculator for displaying problem-solving steps according to claim 2, wherein the arithmetic processor controls the display module to display calculation formulas at the same time, and controls the display module to display calculation formulas and calculation results on the same page. 4. The calculator for displaying problem-solving steps according to claim 2, wherein the calculation processor controls the page for displaying calculation results in the display module to be located before the page for displaying calculation steps. 5. The calculator for displaying problem-solving steps according to claim 4, characterized in that: the operation processor controls the page for displaying the calculation results in the display module to display prompt information reminding the user to turn down the display page of the calculation steps. 6. The calculator for displaying problem-solving steps according to any one of claims 2 to 5, characterized in that: after the arithmetic processor completes the calculation of the calculation formula, it obtains the number of calculation steps N, if N>N0, N0 is Display the maximum number of rows displayed on a single page of the module, and then control the pagination to display the content of the calculation steps. 7. The calculator for displaying problem-solving steps according to claim 6, characterized in that: when the contents of the calculation steps need to be displayed in pages, a prompt message reminding the user of the number of pages is displayed on each display page. 8. The calculator according to any one of claims 1 to 5 for displaying the step of solving a problem, characterized in that: the arithmetic processor controls the display module to first display the calculation result of the calculation formula, and displays based on the calculation steps input by the button module The trigger command controls the display module to display calculation steps. 9 . The calculator for displaying the problem-solving steps according to claim 8 , wherein the display trigger command in the calculation step is a down key signal input through the key module. 10 .

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