ThePolymathicEng @EngPolymathic
Official account of the Polymathic Engineer newsletter, written by @franc0fernand0. Algorithms, distributed systems, and software engineering. Subscribe here: polymathicengineer.com Joined November 2023-
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Linear interpolation is one of the most fundamental algorithms in computer graphics. Image data is stored on a 2D or 3D grid, with values saved at the points where the lines intersect. When a sample point falls exactly on a grid vertex, we can use the stored value. But if it…
Linear interpolation is one of the most fundamental algorithms in computer graphics. Image data is stored on a 2D or 3D grid, with values saved at the points where the lines intersect. When a sample point falls exactly on a grid vertex, we can use the stored value. But if it…
The 138th issue of the Polymathic Engineer is out. This week, we talk about some fundamental algorithms in computer graphics: - Linear Interpolation - Bilinear Interpolation: The 2D Approach - Trilinear Interpolation: Moving to 3D Read it here: newsletter.francofernando.com/p/linear-inter…
If you want to improve your skills as a senior software engineer, read these 12 curated articles: ↓
Many applications require the generation of unique IDs on their backend. This task is easy on a single server but harder on a large scale. For example, on a single server, you can use an incremental ID or a function to get the time of the day. However, such strategies fail in…
When they hear "Don't Repeat Yourself," 99 out of 100 developers immediately think of copy-paste code. However, DRY is about much more than that. The main focus is on knowledge, not code. When we duplicate knowledge, we're not only making additional work for ourselves now,…
When they hear "Don't Repeat Yourself," 99 out of 100 developers immediately think of copy-paste code. However, DRY is about much more than that. The main focus is on knowledge, not code. When we duplicate knowledge, we're not only making additional work for ourselves now,…
The 137th issue of the Polymathic Engineer is out. Today, we discuss the Don't Repeat Yourself principle: - What DRY Really Means - Hidden Costs of Repetition - Types of Duplication - Solutions That Actually Work - When NOT to Apply DRY Link: newsletter.francofernando.com/p/the-dry-prin…
If you are a software engineer who really wants to get better at data structures and algorithms, read these 12 articles: ↓
Don't go to a coding interview without knowing the difference between: - Generic Trees - Binary Trees - Binary Search Trees Here is all that you need to know: [1/3] ↓
How do CDNs speed up content delivery on the internet? At a high level, a CDN works like a cache. When a CDN server gets a request, it checks if the requested resource is cached locally. If it doesn't, the server gets the resource from the origin server, caches it, and sends it…
How do CDNs speed up content delivery on the internet? At a high level, a CDN works like a cache. When a CDN server gets a request, it checks if the requested resource is cached locally. If it doesn't, the server gets the resource from the origin server, caches it, and sends it…
The 136th edition of the Polymathic Engineer is out. This week, we talk about Content Delivery Networks: - What is a CDN - Benefits - Architecture - How CDNs Work - The Power of the Overlay Network - Best Practices - Real-World Examples Read it here: newsletter.francofernando.com/p/a-critical-g…
If you're a software engineer who wants to know more about databases, read these 10 articles: ↓
Imagine you're in a system design interview, and the interviewer asks you to "design a messaging system." If the first thing that comes to mind is brainstorming technical stuff, you're on the wrong path. You're missing the most critical part of the design process. Even the…
Imagine you're in a system design interview, and the interviewer asks you to "design a messaging system." If the first thing that comes to mind is brainstorming technical stuff, you're on the wrong path. You're missing the most critical part of the design process. Even the…
The 135th issue of the Polymathic Engineer is out. Today, we discuss system requirements: - Why They Matter - Functional vs Non-Functional - Availability & Reliability - Scalability & Performance - Durability & Consistency - more.. Read it here: newsletter.francofernando.com/p/requirements…
Do you know what a database does most of the time? This classic paper makes a very detailed profile of a transactional database, figuring out what each CPU command does. Only 10% of the CPU instructions do critical work. The rest are spread out fairly evenly between: -…
The 134th issue of the Polymathic Engineer is out. This week, we discuss how to become a more confident software engineer: - Learn a Programming Language Well - Unit Tests and CI - Refactoring as a Habit - Pairing - Read Books - Teach Read it here: francofernando.substack.com/p/how-to-becom…
It took me 5+ years to become confident in my skills as a software engineer. But I could have done it in less time if I had followed these 6 pieces of advice: 1. Learn a programming language well Start by mastering one language, its syntax, idioms, and best practices. Deep…
It took me 5+ years to become confident in my skills as a software engineer. But I could have done it in less time if I had followed these 6 pieces of advice: 1. Learn a programming language well Start by mastering one language, its syntax, idioms, and best practices. Deep…
If you're a software engineer who wants to upskill in system design, read these 12 articles: ↓
Every beginner in tech should know that nobody agrees on what a senior developer is. Some people with less than 2 years of experience have the title. At the same time, some do not have that title for 10. Seniority at one company may not mean seniority at another.
The 133rd issue of the Polymathic Engineer is out. This week, we discuss how to design a URL shortener: - Capacity Planning - System Architecture - Generating Short URLs - Database Design - Caching for Performance - Analytics Service Read it here: newsletter.francofernando.com/p/designing-a-…
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