Dslr 포토부스 프로그램 원합니다. C#이나 python 으로 제작되길 원한다. 한국어로 지원이되면 좋다. 아니면 수정할수 있게 주석을 원한다. I want the Dslr photo booth program. I want it to be made with C# or Python. It is good if it is supported in Korean. Or I want an annotation that can be modified.
The mssql database you are currently using is slow to search You want to improve the speed of this slow search speed.
현미경-오토스테이지 자동사용관련 현재 파이썬 프로그램은 이미 제작이 되어 있으며, 이를 장비와 연동만 잘 시켜 주시면 됨니다. 스테이지 같은 경우, 코드를 새로 받아서, 새로 조금 고쳐야 하는 부분이 있습니다.
통신이론 프로젝트입니다. 음성파일 3개가 혼합되있는 파일을 분리하여 wav파일로 출력하는 프로젝트입니다.(파일에 있습니다.) 자세한건 첨부된 파일에 들어있습니다. 간단한 프로젝트지만 제가 지식이 부족해서 이렇게 올립니다. 궁금한사항있으시면 메일주세요. 고수분들은 1시간도안되서 끝날 것입니다. 4만원 드리겠습니다.
I'm searching for a freelancer with intermediate Matlab skills to help optimize the energy efficiency of a battery system for renewable energy applications. Key Project Requirements: - Optimize battery system for energy efficiency: The primary focus of this project is to ensure that our battery system operates with maximum energy efficiency. This involves assessing current battery performance and implementing improvements in its energy consumption. Ideal Candidate: - Intermediate Matlab Proficiency: The perfect candidate for this project should be proficient with Matlab, having experience in battery system optimization. Previous work in the field of renewable energy systems would be a bonus. The goal of this project is to enhance the energy efficiency of our ba...
I am looking for a skilled typist who can convert my handwritten pages into plain text format. The ideal candidate should be proficient at typing and have an eye for detail, ensuring accuracy in the transcription process. Key Requirements: - Type handwritten pages into plain text - No specific formatting is needed, just a standard text fo...have an eye for detail, ensuring accuracy in the transcription process. Key Requirements: - Type handwritten pages into plain text - No specific formatting is needed, just a standard text format The project involves converting a considerable number of handwritten pages into digital text. Since this is a text-only job, the candidate doesn't need to worry about any complex formatting. Accuracy, speed, and attention to detail are essential...
I am in need of an experienced Algo / Python developer with a strong background & deep understanding of algorithm construction. As part of this project, you’ll be responsible for: Algo for Range breakout :-- - Developing algo in python for Range Breakout strategy - Test it & implement for the demat account in brokers- Upstock, Alice Blue, Dhan & 5paisa Ideal skills for this role include: - Extensive experience with Python specifically in the areas of automation and algorithm development - Familiarity with stock market - Strong ability to run effective algorithms Your role in this task is more tilted towards the developmental side, with the creation of an algorithm being the primary focus. You are expected to apply your Python skills to cre...
I'm in need of a Wix website designer to create an engaging and user-friendly online store. This platform will...- UI/UX Design Skills: A user-friendly and engaging design is crucial, targeting a young adult audience. - Drop-Shipping Integration: Previous experience with drop-shipping integration would be advantageous. Items are not created yet so you must be able to make the website with some dummy items first for testing. I am not able to call about this site due to my current location and internet speed. So we must be able to communicate via Freelancer, whatsapp chat etc. If you have a passion for social justice and the skills outlined above, I look forward to hearing from you. The candidate must be ok with working on a site that promotes women's rights, LGBT, bla...
Hi there! I'm seeking an expert in Python and VBA who can develop a real-time data statistical analysis tool for use on Windows. The tool must be able to process financial data. Though the format of my data wasn't specified, please be ready to handle a diverse range of formats, including but not limited to CSV files, SQL databases, and Excel files. Skills and Experience: - Mastery of Python and VBA - Experience with statistical data analysis - Familiarity with financial data - Proficiency in handling diverse data formats. - Skill in working on Windows OS. Ultimately, I require a reliable system for my ongoing financial data analysis needs. Your track record of similar successful tasks will be a plus.
My Python script is intended to scrape specific Telegram groups, but it's not functioning as expected. I need a developer to address these issues, described below. - **Issue Description**: The script is crashing when scraping certain Telegram groups, which is likely due to the fact that it's not respecting selections. The error presented is “ AttributeError: 'MessageMediaWebPage' object has no attribute 'document'” I can provide the script if you want to check how it’s working. I am open to a whole new script being made. So long as it functions in a similar way. If not familiar you can view telethon api - **Expected Behavior**: The scraping script is supposed to collect data that matches specific regex patterns. This means that
I'm seeking an expert in Python and VBA who can develop a real-time data statistical analysis tool for use on Windows. The tool must be able to process financial data. Though the format of my data wasn't specified, please be ready to handle a diverse range of formats, including but not limited to CSV files, SQL databases, and Excel files. Skills and Experience: - Mastery of Python and VBA - Experience with statistical data analysis - Familiarity with financial data - Proficiency in handling diverse data formats. - Skill in working on Windows OS. Ultimately, I require a reliable system for my ongoing financial data analysis needs. Your track record of similar successful tasks will be a plus.
I require a skilled Matlab expert with a strong background in image processing techniques. Key requirements include: - Proficiency in image processing algorithms - Experience with feature extraction and object detection - Ideally, a track record of working with various image formats The successful candidate will need to understand the specific needs of my project and connect them with the most suitable image processing techniques available in Matlab. This may involve implementing and testing different solutions to meet project goals. Please note that as I have not specified the image format, experience with a range of formats would be advantageous. I look forward to reviewing your portfolio and discussing how you can support this exciting project.
...research, and efficient social media networking. Here are the specific requirements: 1. Internet Type: My preference is mobile data. I expect you to provide a solid solution that will offer uninterrupted internet connection and advise on a good data plan suitable for heavy usage. 2. Devices: This network should comfortably support more than five devices concurrently without compromising its speed or reliability. 3. Skills: Ideally, you should be savvy in network management, show a strong knowledge of mobile data usage, and have a good experience with various internet service providers. Having a good understanding of data consumption for the tasks mentioned will be an added advantage. I appreciate your interest in my project and look forward to your professional advice as wel...
I'm seeking a proficient developer to create a robust system that utilizes CCTV cameras to monitor vehicle speed and license plates. This system will need to take images of overspeeding vehicles, store the data in a public cloud, and send it to clients via email and WhatsApp. Key requirements include: - Compatibility: The system must be compatible with Windows, Mac, and Android. - Speed Detection: The system should use image recognition to determine vehicle speed. - Data Storage: The captured data should be stored in a public cloud. - Alerting: Notifications for speeding vehicles should be sent to clients through email and WhatsApp. Prior experience with CCTV camera integration and image recognition is crucial for this project. Experience working with public ...
I'm in need of a skilled Matlab expert that can assist me with an image detection project. The particularities of the images, real-time versus offline processing, and the output format are all flexible and can be discussed according to your expertise and recommendations. Key Requirements: - Proficiency in Matlab - Previous experience in image detection - Ability to discuss and decide on the most suitable approach and output format Feel free to share your relevant experience and suggestions to ensure the project goes smoothly. Looking forward to working with you.
To begin, we’re on the hunt for a highly skilled and experienced freelancer with a strong background in both economics and finance. Specifically, we require your proficiency in Stata and Matlab coding as well as a deep understanding of the Ramsey-Cass-Koopmans growth model. For this project, your responsibilities include but won't be limited to: - Coding in Stata and Matlab with proficiency. - Accurately interpreting and utilizing the Ramsey-Cass-Koopmans growth model. - Applying your economic and financial knowledge for effective economic modeling. We're looking to complete an advanced level of economic modeling. Therefore, you will need to demonstrate a high degree of competence and experience in complex economic theories, principles, and modeling. Your ...
I'm looking for a skilled Matlab expert who has a thorough understanding of communication systems, particularly in analyzing waveforms across various domains. Key Tasks: - Signal Processing: You should be able to process signals effectively, extracting necessary information with precision. - Modulation and Demodulation: Experience with encoding and decoding signals is crucial. - Timing and Synchronization: A meticulous understanding of the coordination of signals over time. - Antennas: A good handle on the properties, function, and deployment of antennas. - Propagation and Noise: Ability to assess signal movements and noise interference. Ideal Candidate: - Proficient in Matlab and its functionalities - Experience in Telecommunications, Satellite, and Sound Wave commun...
...responsive design is crucial to ensure seamless, optimal performance on both. Note:- Please check figma of layout required below. The key features I require include: - Fast loading - Google page speed check has to be 100% for both desktop and mobile - The page is image heavy, hence has to lazy load images correctly - Menu has drop down images heavy. Accordingly loading should be only on mouse over and not interfere with rest of page load. - First part of the page should load very fast. - Listing of rest of the page should re-fresh on scroll. - Listings are fetched from Mongo db on aws server
I need a script that can scrape the Google Play store specific data from list of apps in the search result url of any keyword. Need data in Excel spreadsheet. Eg : if i search ...counts, and URL of the app. - The scraped data should be compiled into an Excel spreadsheet format for my review and analysis. - deploy the script into my server The Ideal Freelancer: - Proficient in web scraping tools and techniques - Experience working with Google Play store data - Competent in automating data extraction and processing - Ability to deliver a reliable, daily scraping solution - python experts, node.js experts If you think you're the right person for this job, please get in touch with your relevant experience and a brief overview of your proposed approach. The script is for educa...
I'm seeking a skilled professional in Matlab, Simulink, and HDL Coder, with a profound understanding of FPGA, particularly the Kria SOM platform. Key Project Details: - The primary goal is to implement an Object Detection DNN on the Kria SOM FPGA. - The approach is real-time video processing, hence the need for efficiency and speed. - The system should be based on the YOLO model, which is pre-trained on the COCO dataset. - The FPGA resource utilization should be analyzed using HDL Coder by running the FPGA in a loop with MATLAB. Ideal Candidate: - Proficient in Matlab, Simulink, and HDL Coder. - Experienced in implementing DNNs on FPGA, particularly Kria SOM. - Knowledgeable on real-time video processing. - Familiarity with the YOLO model and COCO dataset...
Functionality: Data Collection: Retrieve historical stock data (price and volume) for a given set of stocks from a reliable financial data provider (e.g., Yahoo Finance, Alpha Vantage). Store the data in a suitable format (e.g., CSV files or a database). Data Preprocessing: Clean and preprocess the collected data, handling missing values and ensuring consistent formatting. Calculate necessary technical indicators, such as moving averages (e.g., 50-day, 200-day), Relative Strength Index (RSI), and trading volume. Technical Analysis: Implement functions to identify bullish signals based on technical indicators, such as: Moving Average Crossovers: Detect when a shorter-term moving average crosses above a longer-term moving average (e.g., golden cross). RSI Oversold: Identify stocks w...
...TypeScript, JavaScript, HTML, and CSS to a Python-based system. The website currently allows users to input a URL for evaluation on its ACT and WCAG compliance. Once evaluated, it highlights any errors and provides recommendations for improvement. The source code is provided. Key Requirements: - Recreate user input URL evaluation - ACT and WCAG compliance checking - Error highlighting - Recommendation provision Design Changes: - Redesign of the website's layout - Improvements to the user interface Design Preferences: - Clean and minimalist design - Modern and trendy elements The source code is available for reference. Ideal candidates should have a solid understanding of web development, particularly in TypeScript, JavaScript, HTML, CSS, and Python. Experience wit...
...convert this script into Python so that I can run backtests on my local machine. This Python script should produce the same results as the Pine script on TradingView, but handle different data resolutions (1hr to 1Day data). Key Requirements: - Convert a Pine Script into Python. - Ensure the output of the Python script matches the results produced by the Pine Script on TradingView. - The Python script should be able to handle different data resolutions from 1hr to 1Day. Ideal Skills and Experience: - Prior experience in backtesting trading strategies in Python - Proficiency in Pine Script and familiarity with TradingView - Strong understanding of different data resolutions and how they impact backtesting - Ability to replicate the functionalit...
Looking for Collaborators in Australia, New Zealand, Mexico, Argentina Are you looking for an opportunity to increase your monthly income? We are seeking collaborators from Australia, New Zealand, Mexico, and Argentina. Requirements: No specific major or degree required Good internet speed Laptop with at least an Intel Core i5 processor 24/7 power supply to keep your PC running all day Benefits: Work remotely from your location Flexible working hours (part-time is acceptable) Monthly $500 to $1000 Note: I will provide a detailed workflow to ensure transparency.
Looking for Collaborators in Australia, New Zealand, Mexico, Argentina Are you looking for an opportunity to increase your monthly income? We are seeking collaborators from Australia, New Zealand, Mexico, and Argentina. Requirements: No specific major or degree required Good internet speed Laptop with at least an Intel Core i5 processor 24/7 power supply to keep your PC running all day Benefits: Work remotely from your location Flexible working hours (part-time is acceptable) Monthly $500 to $1000 Note: I will provide a detailed workflow to ensure transparency.
...implement the visual and interaction design. - Conduct thorough testing across different platforms to ensure functionality and responsiveness. - Maintain regular communication with the project team to ensure alignment and address any technical challenges. **Key Skills Required:** - Strong experience in game development with a portfolio of successful projects. - Proficiency in JavaScript, C#, Python, and frameworks like Unity or Phaser. - Demonstrable experience with both web and mobile game development. - Knowledge of API integration for real-time data processing. - Ability to work independently and manage time effectively. **Deliverables:** - A fully functional front-end application for web and mobile. - Documentation of the development process and code. - Regula...
I need an experienced Android game developer to design a minimalistic, Tetris-like game. The unique twist is that the speed of the falling blocks should dynamically respond to the player's heart rate variability. Skills & Experience: - Experience in mobile game development. - Experience in designing minimalistic visual interfaces. - Ability to integrate wearable health monitors. - Familiarity with Tetris or similar games is desired. Regarding the platform, you're free to suggest the most suitable one for such a project.
I'm seeking an entry-level Python developer to help create a new application. Key Responsibilities: - Developing the backend of the application with Python - Ensuring the application is robust and scalable Ideal candidate: - Proficient in Python; prior experience with web development is a plus - Ability to work efficiently as part of a team - Open to learning and growing in the role - Familiarity with HTML and HTTP concepts.
...web developer who can assist with creating a website and landing page using , , and cloudfunnels from yournextfunnel.in. Key Requirements: - The main goal of the website and landing page is to facilitate automated leads and promote our products/services. - Specific features needed are a contact form and social media integration. I need this project completed urgently, so speed and efficiency are a must. I am reselling services so content will be brought in from 2 websites and will require 3 landing pages and social media integration Ideal Skills: - Proficiency with , , and cloudfunnels - Strong web development skills - Experience in creating lead generating landing pages - Ability to incorporate contact forms and social media integrations - Excellent
I'm seeking a Python expert to assist me with a data analysis project. Specifically, I need to: - Analyze financial data: The project involves interpreting and analyzing financial statistics and metrics. Experience in financial analysis is preferred. - Present results via annotated code: The deliverable should be the Python code used for the analysis, with comments and annotations explaining each step. This will help me understand the process and replicate it in the future. The ideal freelancer for this project would be skilled in Python programming, have experience with financial data analysis, and a strong ability to communicate technical concepts in code.
...generate signal for OTC and currently peers 3. Perfect prediction rate 4. Robot is telegram base 5. Robot does not automatically place trade 6. robot only generate signal when user request it Martingale Strategy: - We require basic customization of the martingale strategy. Bot generate perfect signal for any of this Broker: 1. pocketoption 2. Olymptrade Skills and Experience: - Proficiency in Python/nodejs programming language. - Experience in creating Telegram Robots - Experience with creating binary signal trading robots. - Knowledge of pocket option, Olymptrade signals. - Familiarity with CURRENCY and OTC signals winning strategy. Please provide examples of similar projects you have worked on in your proposal. Here are examples of the telegram bot I want. You can che...
...-Enable the AI assistant to suggest better content for specific sections of the page. -Provide a simple "replace" feature that allows users to easily use the suggested content to update sections on the crawled site. Technical Requirements 1. Backend -Build the system with a robust backend architecture that supports high scalability and performance. -Use a well-known programming language such as Python, Java, or Node.js for backend services. 2. Database -Use a scalable database solution, such as PostgreSQL or MongoDB, to store scraped data and user information. 3. Proxy and IP Rotation -Implement IP rotation and use proxy servers to prevent website blocking. 4. Security -Implement security measures to protect user data and prevent unauthorized access. -Ensure data tran...
My WooCommerce website currently loads in more than 4 seconds. I'm particularly interested in enhancing the speed of the homepage, with a focus on optimizing the loading times of sliders and carousels. Key requirements: - Improve overall site speed, especially for the homepage - Prioritize speed optimization for sliders and carousels on the homepage Google pagespeed insights score mobile need 70-80 and desktop need 80-90 GTmetrix score need A or B Ideal skills and experience: - Proficient in WooCommerce - Expertise in website speed optimization - Strong understanding of sliders and carousels - Proven track record in delivering results in speed optimization - Ability to provide post-implementation support and maintenance.
I'm seeking a skilled Python developer to optimize an existing codebase used for data analysis. Key Requirements: - Improve the speed of the code: The primary goal of this project is to significantly enhance the algorithm efficiency, thus resulting in a noticeable speed improvement. Ideal Skills and Experience: - Proficient in Python: You should have extensive experience working with Python and be able to recognize areas in the code that are causing performance bottlenecks. - Data Analysis Experience: Familiarity with data analysis practices would be beneficial as the code is part of this application. - Optimization: You should have a strong background in optimizing code for improved speed and efficiency. Additional Information: - The c...
...by date and start time. **Scope:** The schedule should cover the following: 1. England Men 2. England Women 3. England Disability 4. Vitality County Championship 5. Vitality Blast 6. Metro Bank One Day Cup 7. Charlotte Edwards Cup 8. Rachael Heyhoe Flint Trophy 10. The Hundred **Details to Include:** For each match, include the following columns: - Date - Match Number - Teams (Example: Team A vs Team B) - Match Format (Example: T20, ODI, Test, League 100) - International or Domestic - UK Start Time - New Zealand Start Time - Stadium Name - City - Distance from Sidcup, UK (as per the provided Google Maps link) **Instructions:** 1. **Data Entry:** - Gather fixtures from reliable sources such as: - [ECB Official Site]() - [Cricbuzz Schedule](
...google map 2. only see data about his children. 3. see what time his/her child gets on/off and at what location 4. being given the bus in which his or her child is sitting. 5. being able to see his child's monthly report of where they got in/out and at what time. 6. which bus is suspended, why and the bus details what should the administrator be able to do? - blacklist/suspend driver - see driver speed -view route record - Real time tracking of bus location on google map - all drivers send messages push notification - all parents send messages push notification -accept/approve new driver -accept and approve new passenger - assign passenger to a bus - can print out the travel history of each student for an entire year / month - Generate QR code for each student / driver - nu...
I need a proficient Matlab user who can help me Deadline: 3 days
I need historical stock prices and income statement data, deliver python script to collect this data for an arbitrary stock from google finance.
I've been working on a Python script that I'd like to make accessible online through a web interface. This would involve uploading the script to a suitable web server and setting up a simple user interface. Key Requirements: - Deploy my Python script onto a web server, optimization for best performance. - Implement a basic but intuitive UI for the script. - Ensure it can be accessed by anyone without requiring user authentication. Ideal freelancer for this project should have: - Strong experience in deploying Python scripts to web servers. - Proficient in creating user-friendly web interfaces. - Familiarity with various web servers, especially as I'm undecided on a specific one. If you have experience in deploying Python scripts online and can...
I'm looking for help from a talented programmer with C++ experience and low-level programming knowledge. The main purpose of this project is to develop a keyboard input emulator specifically for gaming purposes. Basic requirements: - Compatibility: The emulator must be designed to run on Windows operating systems. - Programming Language: It is important to develop the emulator using C...high-quality, effective solution, I look forward to reviewing your proposal. (The program to be made will be tested in the game with an exe and if successful, it will be included with the entire work.) The sample study is attached. (Note: The project I added did not work in the game) I don't want to install wdk or sdk on my computer or run my computer in test mode. If you want, you can also do it...
Hello, This is a $20 project. Looking for a freelancer to develop a python script to retrieve restaurant data from Google Maps using the Maps/Places API. The script should target restaurants that have a phone number and *do not* have a website. The inputs I need to enter are: - Location (latitude and longitude) - Search Radius (in meters) - Ensure the business/place is a restaurant, bakery, etc. Key Data to Retrieve, output in a .CSV: - Business Name - Address - Phone Number - Google Maps URL Thank you, trooper501
I'm in need of a skilled professional to help me create a data mining script. The task involves mining emails, data from a certain website and delivering the data in a raw text file format. Key Requirements: - Develop a data miner script that can effe...miner script that can effectively scrape email data from websites. - Ensure the script can handle multiple sources and is scalable for future needs. - Deliver the mined data in a raw text file format. Ideal Skills: - Proficiency in web scraping and data mining techniques. - Experience with developing scripts for text data mining. - Strong knowledge of scripting languages suitable for scraping like Python/BeautifulSoup, R, etc. Please provide samples of your previous similar projects or portfolio that demonstrate your abilit...
I'm looking for an Indian Python developer to create a script that can retrieve specific data from Telegram. Key Points: - The script should be able to fetch phone numbers and migration of users from Telegram. The ideal candidate should: - Have a strong background in Python development - Be familiar with working with API's - Have experience in web scraping - Have a good understanding of data privacy and security - Be able to deliver the project on a monthly basis. Looking forward to hearing from Python developers with relevant experience.
I need a professional C#, C or Python programmer with knowledge of MAC/IP
I have a YOLO v5 detection Python script, and I'm looking to turn it into an API-based web program with FastAPI. The API must support user inputs for 4 Twilio contact numbers and 4 RTSP addresses, and it should display the four video streams in a grid on a single page. Key requirements: - Convert the existing YOLO v5 detection Python script into a FastAPI-based web program. - Implement user input functionality for 4 Twilio contact numbers and 4 RTSP addresses. - Display the video streams in a grid layout on a single webpage. Ideal skills and experience: - Proficiency in Python and experience with YOLO v5 detection. - Strong knowledge of FastAPI for building web APIs. - Previous experience integrating Twilio for messaging. - Familiarity with displaying multiple v...
I have a database containing over 600 serial numbers. Email serial number has an associated email address. Instead of listing the same email address multiple times, I would like a script to place all serial numbers by one email address. This will enable me to email the customer once with ALL of their serial numbers in one email. Example: Hannah Walker appears in the database 5 times, the script should remove the four duplicates of Hannah Walker and put all 5 serial numbers by her name.
I'm seeking an expert in Python to help me with an Artificial Neural Network (ANN) implementation. Key Responsibilities: - Developing a comprehensive ANN tailored to our specifications. - Ensuring that the ANN is thoroughly trained. Ideal Skills and Experience: - Extensive experience with Python, particularly in the context of AI, neural networks, or machine learning. - Proven track record of successful ANN implementations. - Proficiency in the field of data science is highly advantageous. Please note that a strong grasp of neural networks and machine learning concepts is crucial for this project. Your ability to troubleshoot and debug effectively will be highly valued. Should you choose to bid, please provide examples of your previous work in this area.
I'm seeking a skilled programmer, proficient in Python, who can develop a trading algorithm according to my exact specifications. The algorithm itself must integrate with the TD Ameritrade platform and take into consideration an array of varying factors such as: - Historical stock prices - Market trends - Earnings reports - The presence of candles twice as large as the previous candle sma cro - Ignoring red and green bars - 8 sma crossing 21 at any time frame - 20 sma crossing 200 at any time frame - 50 sma crossing 200 sma - Double tail bars at any time frame A solid understanding of financial markets as well as a proficiency in developing trading algorithms is necessary. This task is intricate and requires meticulous attention to detail, only experienced developers should...
I'm in search of a skilled Python PHP developer with experience in backend development. If you have a good grasp of Python and backend systems, this project is for you. Essential skills and experience: - Proficiency in Python PHP - Proficiency in Firebase MySQL - Experience in developing real-time features like live chat and notifications Ideal candidates will have: - Strong communication skills - Experience in developing and maintaining a reliable backend system - A keen eye for detail and the ability to troubleshoot and solve problems quickly If you think you're a good fit for this project, please get in touch. I'm excited to see what you can bring to the table.
I'm seeking an experi...project involves algorithm development to achieve our cooling optimization goals. I will forward you a report where they've used Genetic Algorithm method to optimize parameters. She has used four flux theory to predict optical properties for different particle parameters. you should not optimize the reflectance... in your work, you should optimize the cooling power Requirements: Proficiency in MATLAB Strong background in optics, material science, or related fields. Experience with genetic algorithms and parameter optimization techniques. Excellent communication skills and ability to work independently. Nice to have: Familiarity with four-flux models and scattering transfer equations. Previous experience with Lorenz-Mie theory an...
