uncleflo
Registered since September 28th, 2017
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Animate Anything Along an SVG Path | Codrops
Saved by uncleflo on November 14th, 2022.
Learn how to code creative animations using SVG paths and the getPointAtLength() function. SVG is a very neat format to display any illustration, icon or logo on a website. Furthermore, they can be animated in CSS or JavaScript to make them more attractive. But SVG can also be used for their data only, without the visual! Let me explain… An SVG is a vector image format, which means it is not made of coloured pixels, but math functions that, once interpreted, can be rendered on screen. Since the browser must convert the file from functions to actual pixels, it also let us access a wide variety of methods to either manipulate, or retrieve data from the math. In today’s article, we will explore the function getPointAtLength() and see how we can use the data of an SVG path for creative use cases such as the demo below.
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COVID Live - Coronavirus Statistics - Worldometer
Saved by uncleflo on February 13th, 2022.
The coronavirus COVID-19 is affecting 223 countries and territories. The day is reset after midnight GMT+0. The list of countries and their regional classification is based on the United Nations Geoscheme. Sources are provided under "Latest News." Learn more about Worldometer's COVID-19 data. Worldometer is run by an international team of developers, researchers, and volunteers with the goal of making world statistics available in a thought-provoking and time relevant format to a wide audience around the world. It is published by a small and independent digital media company based in the United States. We have no political, governmental, or corporate affiliation. Furthermore, we have no investors, donors, grants, or backers of any type. We are completely independent and self-financed through automated programmatic advertising sold in real time on multiple ad exchanges.
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How To Vanish
Saved by uncleflo on February 12th, 2022.
Without the ability to keep secrets, individuals lose the capacity to distinguish themselves from others, to maintain independent lives, to be complete and autonomous persons. This does not mean that a person actually has to keep secrets to be autonomous, just that she must possess the ability to do so. The ability to keep secrets implies the ability to disclose secrets selectively, and so the capacity for selective disclosure at one’s own discretion is important to individual autonomy as well. Secrecy is a form of power. The ability to protect a secret, to preserve one’s privacy, is a form of power. The ability to penetrate secrets, to learn them, to use them, is also a form of power. Secrecy empowers, secrecy protects, secrecy hurts. The ability to learn a person’s secrets without his or her knowledge — to pierce a person’s privacy in secret — is a greater power still. Cell phones are like a drivers license. It is really hard to function in the modern world without one, but they reveal a lot of information about you that you might not want to share.
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PHP: Trader - Manual
Saved by uncleflo on January 16th, 2022.
Technical Analysis for Traders. The trader extension is a free open source stock library based on TA-Lib. It's dedicated to trading software developers requiring to perform technical analysis of financial market data. Alongside many indicators like ADX, MACD, RSI, Stochastic, TRIX the candlestick pattern recognition and several vector arithmetic and algebraic functions are present. Calculations can be done in two modes - TA-Lib and Metastock. Changing it using trader_set_compat() will affect the way some trader functions work. Some trader functions provide different results depending of the "starting point" of the data being involved. This is often referred as a function having memories. An example of such function is the Exponential Moving Average. It is possible to control the unstable period (the amount of data to strip off) using trader_set_unstable_period() function. Extended documentation about indicators, formulas and implementations in other programming languages can be found under » tadoc.org.
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python - How do I fit a sine curve to my data with pylab and numpy? - Stack Overflow
Saved by uncleflo on May 15th, 2021.
I am trying to show that economies follow a relatively sinusoidal growth pattern. I am building a python simulation to show that even when we let some degree of randomness take hold, we can still produce something relatively sinusoidal. I am happy with the data I'm producing, but now I'd like to find some way to get a sine graph that pretty closely matches the data. I know you can do polynomial fit, but can you do sine fit? You can use the least-square optimization function in scipy to fit any arbitrary function to another. In case of fitting a sin function, the 3 parameters to fit are the offset ('a'), amplitude ('b') and the phase ('c').
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Work with the Bookmarks API - Mozilla | MDN
Saved by uncleflo on April 17th, 2021.
Bookmarks enable users to collect and organize lists of web pages, so they can easily get back to their favorites. Using the Bookmarks API, your extensions can manipulate bookmarks in much the same way users can. To make use of the Bookmarks API, you need to ask for the "bookmarks" permission in your extension’s manifest.json file: The Bookmarks API lets your extension do the things users can do with bookmarks and includes functions for: To gain an understanding of how to work with the Bookmarks API let’s take a look at the bookmark-it example. This example adds a toolbar icon (browserAction) which, when clicked, adds or removes the current page from bookmarks. If the page is bookmarked (or removed from bookmarks) in some other way, the icon is updated to show the state of the page’s bookmarking.
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User guide — Typeguard 2.12.0 documentation
Saved by uncleflo on April 3rd, 2021.
Two functions are provided, potentially for use with the assert statement: check_argument_types() and check_return_type(). These can be used to implement fine grained type checking for select functions. If the function is called with incompatible types, or check_return_type() is used and the return value does not match the return type annotation, then a TypeError is raised.
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ISolar V III Off-Grid lnverter-ISolar SMV/SPV Series
Saved by uncleflo on December 27th, 2019.
ISolar V III is third generation off-grid inverter with rich new functions. Its detachable LCD control module can be turned to remote panel. It’s also integrated with Bluetooth interface ready for mobile monitoring and supports USB on-the-go function to facilitate data upload/download. Battery independency design enhances this inverter to operate without battery connected. Please check our sales for more details.
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HV 120V 500A brushless controller and 120100 Outrunner Brushless Motor ESC for RC UAV/ Airplane/Paramotor-in Parts & Accessories from Toys & Hobbies on AliExpress
Saved by uncleflo on December 22nd, 2019.
HV 120V 500A brushless controller and 120100 Outrunner Brushless Motor ESC for RC UAV/ Airplane/Paramotor. ESC Features: The firmware is upgraded recently. Two way communication while connecting it with computer. Firmware can be upgraded by user. Motor cable can be inspected while Connecting the power battery. Simply set function value by Prog-Box or by PC via USB link wire. Li-MH/Li-Po,Ne-Cd/Ne-mH,LiFe battery can be use. Enables setting the voltage per cell for the point at which the controller’s cut off circuitry engages.Li-MH/Li-Po from 2.0-3.6V,Ne-Cd/Ne-.4-1.0V,LiFe from2.2-2.8V. Reverse function. the delay time of reverse is adjustable. The power of the motor forward/ reverse can be set. Automatically detection the throttle route or can be set a fixed number by manual operation. Auto cut off the power within 3 seconds if no radio signs. Timing setting may be adjusted (0°-30°) to suit the motor type.
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Self Contained Marine Air Conditoning | Nauticool
Saved by uncleflo on December 18th, 2019.
Self-contained cooling units are the best solution for boats with up to three cabins. Every cabin is equipped with one unit which is spec’ed according to the cabin’s size, cooling/heating demand and location of the boat. Comprehensive range of self contained units for all size of boats.
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Oceanvolt - Price & System Examples - Electric Boat Propulsion Systems
Saved by uncleflo on February 24th, 2019.
All of the system examples below are complete pure electric solutions meaning they contain everything needed for a fully functioning electric propulsion system. VAT, shipping, installation, generators & solar panels are not included in the system pricing. The system prices include: motor(s), lithium batteries, propeller(s), charger(s), system monitoring, standard warranty & system certification. Liquid cooling is included in all systems above 10kW.
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Linux Daemon Writing HOWTO
Saved by uncleflo on January 4th, 2019.
A daemon (or service) is a background process that is designed to run autonomously,with little or not user intervention. The Apache web server http daemon (httpd) is one such example of a daemon. It waits in the background listening on specific ports, and serves up pages or processes scripts, based on the type of request. Creating a daemon in Linux uses a specific set of rules in a given order. Knowing how they work will help you understand how daemons operate in userland Linux, but can operate with calls to the kernel also. In fact, a few daemons interface with kernel modules that work with hardware devices, such as external controller boards, printers,and PDAs. They are one of the fundamental building blocks in Linux that give it incredible flexibility and power. Throughout this HOWTO, a very simple daemon will be built in C. As we go along, more code will be added, showing the proper order of execution required to get a daemon up and running.
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RICOH Plug-ins
Saved by uncleflo on October 8th, 2018.
Plug-ins are more convenient and easy to use. RICOH THETA V functions can be expanded via plug-ins. Because the software is based on the Android™ OS, a variety of new functions can be added to the RICOH THETA V via plug-ins just like installing apps on your smartphone. Customize your THETA and take it to the next level !
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Mozilla LDAP SDK Programmer's Guide/Searching the Directory With LDAP C SDK
Saved by uncleflo on February 7th, 2018.
This section explains how to use the LDAP C API to search the directory and to retrieve entries. LDAP C SDK provides functions that allow you to search a directory and to retrieve results from the server. For example, you can send a search request by calling the synchronous ldap_search_ext_s() function or the asynchronous ldap_search_ext() function and the server sends back matching results.
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Apache Cordova
Saved by uncleflo on January 26th, 2018.
Cordova wraps your HTML/JavaScript app into a native container which can access the device functions of several platforms. These functions are exposed via a unified JavaScript API, allowing you to easily write one set of code to target nearly every phone or tablet on the market today and publish to their app stores. A diverse ecosystem of command line tools, JavaScript frameworks, and cloud services exist that augment Cordova
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Securely Hash Passwords with PHP
Saved by uncleflo on December 27th, 2017.
PHP 5.5+ now comes baked with a password_hash function to generate secure, one-way hashes along with a password_verify function to match a hash with the given password—If you’re a PHP developer, you should always be securely storing user passwords, no excuses. Developers have a huge responsibility when handling and storing user-sensitive information, such as a password. We should take extra precaution and the necessary steps to make sure the user’s data is safe and secure*. *Please keep in mind the following implementation is only part of the problem since it handles the data once the web server receives it; however, it does not address the other issue of securely sending the sensitive data over-the-air from the browser to the server, which is why a valid SSL certificate is necessary.
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The RUST Programming Language
Saved by uncleflo on June 23rd, 2017.
Rust is a systems programming language that runs blazingly fast, prevents segfaults, and guarantees thread safety. If you haven’t seen Rust at all yet, the first thing you should read is the introduction to the book, The Rust Programming Language. It will give you a good idea of what Rust is like, show you how to install it, and explain its syntax and concepts. Upon completing the book, you’ll be an intermediate Rust developer, and will have a good grasp of the fundamental ideas behind Rust.
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AWK - Built-in Functions
Saved by uncleflo on January 27th, 2017.
AWK has a number of functions built into it that are always available to the programmer. This chapter describes Arithmetic, String, Time, Bit manipulation, and other miscellaneous functions with suitable examples.
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Online Algebra Calculator | Maxima-online
Saved by uncleflo on April 2nd, 2015.
Calculate the Jacobian from a website, very powerful. Many of users do not use powerful Maxima computer algebra system for systematic work, but for ad hoc algebraic calculations – equations, functions, matrixes, etc. only. To do this job, it is not useful to download the whole application from a web site.
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JavaScript’s Apply, Call, and Bind Methods are Essential for JavaScript Professionals | JavaScript is Sexy
Saved by uncleflo on February 22nd, 2015.
Functions are objects in JavaScript, as you should know by now, if you have read any of the prerequisite articles. And as objects, functions have methods, including the powerful Apply, Call, and Bind methods. On the one hand, Apply and Call are nearly identical and are frequently used in JavaScript for borrowing methods and for setting the this value explicitly. We also use Apply for variable-arity functions; you will learn more about this in a bit.
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MySQL :: MySQL 5.5 Reference Manual :: 11.9 Full-Text Search Functions
Saved by uncleflo on February 22nd, 2015.
MySQL has support for full-text indexing and searching. Full-text searching is performed using MATCH() ... AGAINST syntax. MATCH() takes a comma-separated list that names the columns to be searched. AGAINST takes a string to search for, and an optional modifier that indicates what type of search to perform. The search string must be a string value that is constant during query evaluation. This rules out, for example, a table column because that can differ for each row.
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#3b5998 on 0to255
Saved by uncleflo on February 22nd, 2015.
Basically, it's a simple tool that helps web designers find lighter and darker colors based on any color. Why is this necessary? Well, that takes a little more explanation. I built 0to255 to make my job easier. I'm a web designer who works with colors every day. Usually, I'll start with a color I want to use, then I'll manipulate it for various functions. For example, I might brighten a link in its hover state or darken a button's border to make it contrast with surrounding elements. Web designers do things like these several times an hour.
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Creating a shared and static library with the gnu compiler [gcc]
Saved by uncleflo on February 8th, 2015.
Here's a summary on how to create a shared and a static library with gcc. The goal is to show the basic steps. I do not want to go into the hairy details. It should be possible to use this page as a reference.
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Calculating the Eigenvalue and Eigenvector of a Matrix on the TI-89 Family, TI-92 Plus, and Voyage™ 200 Graphing Calculators. - Knowledge Base by Texas Instruments - US and Canada
Saved by uncleflo on January 20th, 2015.
How do I calculate the eigenvalue and eigenvector of a matrix on the TI-89 family, TI-92 Plus, and Voyage 200 graphing calculators? To calculate the eigenvalue and eigenvector of a matrix on the TI-89 family, TI-92 Plus, and Voyage 200 refer to the instructions below
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Unicode code converter [ishida >> utilities]
Saved by uncleflo on December 10th, 2014.
Type or paste text in any of the green or grey shaded boxes and click on the button Convert button above it. Alternative representations will appear in all the other boxes. You can then cut & paste the results into your document. Select selects all the text in a box. See the notes at the bottom of the page for other options.
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