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We’re ironically searching for counterexamples to the Riemann Hypothesis. Setting up Pytest Adding a Database Search strategies In the last article, we improved our naive search from “try all positive integers” to enumerate a subset of integers (superabundant numbers), which RH counterexamples are guaranteed to be among. These numbers grow large, fast, and we quickly reached the limit of what 64 bit integers can store. Unbounded integer ari..
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We’re ironically searching for counterexamples to the Riemann Hypothesis. Setting up Pytest Adding a Database Search strategies In the last article, we improved our naive search from “try all positive integers” to enumerate a subset of integers (superabundant numbers), which RH counterexamples are guaranteed to be among. These numbers grow large, fast, and we quickly reached the limit of what 64 bit integers can store. Unbounded integer ari..
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We’re ironically searching for counterexamples to the Riemann Hypothesis. Setting up Pytest Adding a Database Search strategies In the last article, we improved our naive search from “try all positive integers” to enumerate a subset of integers (superabundant numbers), which RH counterexamples are guaranteed to be among. These numbers grow large, fast, and we quickly reached the limit of what 64 bit integers can store. Unbounded integer ari..
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Below see two kernel density estimations. What could you say about them? Most likely, you say that the first plot is based on a uniform distribution, and the second one is based on a multimodal distribution with four modes. Although this is not obvious from the plots, both density plots are based on the same sample: 21.370, 19.435, 20.363, 20.632, 20.404, 19.893, 21.511, 19.905, 22.018, 19.93, 31.304, 32.286, 28.611,....
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Below see two kernel density estimations. What could you say about them? Most likely, you say that the first plot is based on a uniform distribution, and the second one is based on a multimodal distribution with four modes. Although this is not obvious from the plots, both density plots are based on the same sample: 21.370, 19.435, 20.363, 20.632, 20.404, 19.893, 21.511, 19.905, 22.018, 19.93, 31.304, 32.286, 28.611,....
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Those who ever owned an old Nokia phone like 3310 or 3210 might still remember its wonderful ability to compose your own ringtones straight on the phone’s keyboard. By arranging notes and pauses you could end up with a popular tune beeped out of the phone’s speaker, and furthermore, you could share it with your friends! If you missed that era, here’s how it looked like: Unimpressed? Well, trust me, it was really cool back then especially if..
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Monero has always found innovative ways to solve difficult privacy problems. Nowhere is this exemplified more than in the case of Monero's subaddress technology.
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Those who ever owned an old Nokia phone like 3310 or 3210 might still remember its wonderful ability to compose your own ringtones straight on the phone’s keyboard. By arranging notes and pauses you could end up with a popular tune beeped out of the phone’s speaker, and furthermore, you could share it with your friends! If you missed that era, here’s how it looked like: Unimpressed? Well, trust me, it was really cool back then especially if..
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Remote working is not a new practice, but it’s also not the norm. That has changed during this pandemic. Many software delivery teams were forced to move from working together in a shared space to remote working, which has impacted how they collaborate. One of the practices we regularly use in our projects is pair programming, and we've had to pay close attention to how we adapt this practice to the fully remote workplace.
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Mapan’s mission is to ‘increase access, dignity, and income for low-income communities through technology.’ They recruit local entrepreneurs and leaders, also called Mitra Usaha Mapan (MUM) at Mapan. These MUMs facilitate access to products, their ordering, payment, and delivery that improves the lives of their community. Mapan split the profits with the entrepreneurs to positively impact the local economy.
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Hashtable Hashtable 实现了 Map 接口，用于存储键值对， 禁止 null 元素 。 用作键的对象必须保证hashCode与equals的可用性。 Hashtable 是 线程安全 的，但一般来说，如果不需要考虑线程安全问题可以使用 HashMap 作为替代，如果需要线程安全的高并发哈希表可以使用 ConcurrentHashMap ，总的来说就是，一般不需要使用 HashTable。 Hashtable 具有两个性能相关的参数： 初始容量( initial capacity ) 和 负载因子( load factor ) ， 容量是指 HashTable 桶（ buckets ） 的容量，初始容量即 HashTable 在创建时桶的默认大小。在哈希冲突的情况下，每个桶会通过 链表 存储多条数据。 负载因子默认是 0.75 ，一般来说该值是最佳值。 当 HashTable 容量超出负载因子时将会进行 rehash 操作，该....
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Return on Data: When governments fail to make surveillance useful
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nikhilism.com
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5 years ago
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eng
There is this common refrain about how companies have data about you and could do bad things. Yet governments often pass surveillance laws that are much worse, and by definition, you can’t “vote with your wallet” for them. So in a world where I’m already giving data to third parties, it is useful to ask what I get in return. If we are talking about corporations, we get ads! Yes, but we also get:
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Return on Data: When governments fail to make surveillance useful
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nikhilism.com
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5 years ago
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eng
There is this common refrain about how companies have data about you and could do bad things. Yet governments often pass surveillance laws that are much worse, and by definition, you can’t “vote with your wallet” for them. So in a world where I’m already giving data to third parties, it is useful to ask what I get in return. If we are talking about corporations, we get ads! Yes, but we also get:
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When the pandemic hit earlier this year, schools around the globe quickly embraced online teaching to continue their curriculum. While online teaching wasn’t entirely new in this space, it certainly wasn’t the norm. This meant that many teachers had to adapt quickly, as these 2 funny videos illustrate: https://www.youtube.com/watch?v=CCe5PaeAeew https://www.youtube.com/watch?v=Zy_y9yOrgxk However, I’ve loved every part of this trans....
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When the pandemic hit earlier this year, schools around the globe quickly embraced online teaching to continue their curriculum. While online teaching wasn’t entirely new in this space, it certainly wasn’t the norm. This meant that many teachers had to adapt quickly, as these 2 funny videos illustrate: https://www.youtube.com/watch?v=CCe5PaeAeew https://www.youtube.com/watch?v=Zy_y9yOrgxk However, I’ve loved every part of this trans....
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Phishing: Persuading People through a Voice Synthesized by AI - Part 1
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serhack.me
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5 years ago
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eng
I get between 10 to 20 emails per day and, usually, more than half of them are phishing attempts. Phishing attempts are a type of email scam that typically aims to obtain personal data of the victim, including username and password for email accounts and popular services (Gmail, Hotmail, mail.ru, Twitter, Amazon, etc.), through pages forged ad hoc to simulate login sections. -Continue to read the article on SerHack.me
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Decided to setup a blog to track some of the things that I wanted to work on, and maybe hold myself accountable. Stack: Engine: Hugo Hosting: GitLab (Pages) It’s actually surprising how easy it is to use the WebIDE inside of Gitlab. Means I don’t have to maintain an actual work environment, though, I may end up to just keep using Gitpod instead as state is maintained inside… Who knows what lays ahead…
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Circular gradients are commonly used in pie or doughnut charts to change the colour of segment as the angle around the center of the chart changes. In many non web platforms, the ability to generate these gradients is provided as part of the standard APIs. For example, Android provides a SweepGradient. In the browsers, only Linear and Radial gradients are provided. Thus, if we want to a circular gradient, we’ll need to create our own.
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This is an answer to Antoine Veuiller ’s article, an Introduction to Flaky Tests by Example , in which he shares his experience on tackling unstable tests. And I’m the author of the flaky tests he’s talking about! 😬 Story time! ¶ I started designing and implementing Scaleway’s billing pipeline …
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This is an answer to Antoine Veuiller ’s article, an Introduction to Flaky Tests by Example , in which he shares his experience on tackling unstable tests. And I’m the author of the flaky tests he’s talking about! 😬 Story time! ¶ I started designing and implementing Scaleway’s billing pipeline …
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Been playing around with Swift Package Manager (SPM) . Creating a new Swift package (ie. project) is pretty simple. To create a library package, we can use the following: swift package init --type library Alternatively, to create a command-line utility use: swift package init --type executable Turns out, there are a few options: empty, library, executable, system-module, manifest. With a little elisp, we can write a completing fu....
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We are all familiar with a traditional office suite - a word processor, a spreadsheet, a presentation program, maybe a diagramming or note-taking app. We have seen it all in Microsoft Office and Google Docs. Those are really powerful and large. But what would be the most minimal amount of code required to build an office suite? platform Obviously, our office suite won’t be a desktop GUI app - those require plenty of code and efforts to buil..
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We are all familiar with a traditional office suite - a word processor, a spreadsheet, a presentation program, maybe a diagramming or note-taking app. We have seen it all in Microsoft Office and Google Docs. Those are really powerful and large. But what would be the most minimal amount of code required to build an office suite? platform Obviously, our office suite won’t be a desktop GUI app - those require plenty of code and efforts to buil..
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Near the end of every year I note down a summary of the best apps, hardware & podcasts I’ve enjoyed throughout the year (and often for some time before). This post has been superseded. You can find the latest version of this post here . Software and Services Plex Things Pixelmator Pro Reeder NextMeeting Bumpr Fastmail 1Password Calibre Backblaze iTerm Gitlab PFsense Stay Onyx Evernote Handbrake Amph....
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Near the end of every year I note down a summary of the best apps, hardware & podcasts I’ve enjoyed throughout the year (and often for some time before). This post has been superseded. You can find the latest version of this post here . Software and Services Plex Things Pixelmator Pro Reeder NextMeeting Bumpr Fastmail 1Password Calibre Backblaze iTerm Gitlab PFsense Stay Onyx Evernote Handbrake Amph....
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Near the end of every year I note down a summary of the best apps, hardware & podcasts I’ve enjoyed throughout the year (and often for some time before). This post has been superseded. You can find the latest version of this post here . Software and Services Plex Things Pixelmator Pro Reeder NextMeeting Bumpr Fastmail 1Password Calibre Backblaze iTerm Gitlab PFsense Stay Onyx Evernote Handbrake Amph....
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Near the end of every year I note down a summary of the best apps, hardware & podcasts I’ve enjoyed throughout the year (and often for some time before). This post has been superseded. You can find the latest version of this post here . Software and Services Plex Things Pixelmator Pro Reeder NextMeeting Bumpr Fastmail 1Password Calibre Backblaze iTerm Gitlab PFsense Stay Onyx Evernote Handbrake Amph....
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Near the end of every year I note down a summary of the best apps, hardware & podcasts I’ve enjoyed throughout the year (and often for some time before). This post has been superseded. You can find the latest version of this post here . Software and Services Plex Things Pixelmator Pro Reeder NextMeeting Bumpr Fastmail 1Password Calibre Backblaze iTerm Gitlab PFsense Stay Onyx Evernote Handbrake Amph....
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Near the end of every year I note down a summary of the best apps, hardware & podcasts I’ve enjoyed throughout the year (and often for some time before). This post has been superseded. You can find the latest version of this post here . Software and Services Plex Things Pixelmator Pro Reeder NextMeeting Bumpr Fastmail 1Password Calibre Backblaze iTerm Gitlab PFsense Stay Onyx Evernote Handbrake Amph....
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Near the end of every year I note down a summary of the best apps, hardware & podcasts I’ve enjoyed throughout the year (and often for some time before). This post has been superseded. You can find the latest version of this post here . Software and Services Plex Things Pixelmator Pro Reeder NextMeeting Bumpr Fastmail 1Password Calibre Backblaze iTerm Gitlab PFsense Stay Onyx Evernote Handbrake Amph....
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The dreaded
P0171
code… If you've experienced it, just the mention likely gives you nightmares. If not - here's the rundown.
P0171
is the automotive
On-Board Diagnostics
(
OBD
) code 1 for a
lean condition
on the engine. If the engine is running lean, it simply means that the
air to fuel ratio
is not optimized, and there's either too much air or not enough fuel. Before I get too far ahead here, let's se..
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As I work through deleting a bunch of accounts, I note down the various issues that make it harder than it should be
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As I work through deleting a bunch of accounts, I note down the various issues that make it harder than it should be
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As I work through deleting a bunch of accounts, I note down the various issues that make it harder than it should be
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/Σ/ To discover what was dearly missed in schooling, this general will serve as a playground. >What do you mean? Why talk of mathematics? >I hate mathematics. https://www.maa.org/external_archive/devlin/LockhartsLament.pdf >Okay, but I don't kn
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lainchan.org
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5 years ago
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eng
Σ/ To discover what was dearly missed in schooling, this general will serve as a playground. >What do you mean? Why talk of mathematics? >I hate mathematics. https://www.maa.org/external_archive/devlin/LockhartsLament.pdf >Okay, but I don't know where to start. I still hate what I was put through. I'm just as lost, but I hope this is what this general will serve as. Don't be afraid to ask any 'stupid' questions here. ..
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In reply to Ed Hurst. Thanks brother and namesake! I appreciate your willingness to face my Spanish writing and I don't have any doubts about your good nature. But I am afraid that some English speakers might be put off; and, especially, many Spanish speakers could be put off or intimidated due to the massive English content. They are the ones who concern me the most..
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If you are not familiar with these 3 speakers and their thesis about education, time to catch up! Entertaining and well-articulated, they will help you understand where the current education system migh be falling short. Ken Robinson is more focused on the what, Seth on the why and Sugata Mitra is looking for an alternative approach (hint: it involves the Internet). Ken Robinson: School kills creativity I am not sure how much Ken Robinson s..
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Cool stuff: This blogpost got featured on the official Docusaurus blog! 🎉 Now, go read on about creating your own Docusaurus plugin 🚀. At ClaimR we have been using Docusaurus v2 for our developer and documentation website for a while now. After a couple of months of using it we can confidently say that we’re very happy with our choice. Docusaurus comes batteries-included, so you immediately get a lot of value, while it is flexible enough t..
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If you are not familiar with these 3 speakers and their thesis about education, time to catch up! Entertaining and well-articulated, they will help you understand where the current education system migh be falling short. Ken Robinson is more focused on the what, Seth on the why and Sugata Mitra is looking for an alternative approach (hint: it involves the Internet). Ken Robinson: School kills creativity I am not sure how much Ken Robinson s..
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Python 3.9 has arrived! This week on the show, former guest and Real Python author Geir Arne Hjelle returns to talk about his recent article, "Python 3.9: Cool New Features for You to Try". Also joining the conversation is Real Python video course instructor and author Christopher Trudeau. Christopher has created a video course, which was released this week also, based on Geir Arne's article. We talk about time zones, merging dictionaries, ..
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Where are we? It’s 2020. The year so far has been nothing short of a global collapse of order, yet frighteningly the realities we’re facing…
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