Here’s a plot of exp(6it)/2 + exp(20it)/3: Notice that the plot has 7-fold symmetry. You might expect 6-fold symmetry from…

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## A wrinkle in Clojure

Bob Martin recently posted a nice pair of articles, A Little Clojure and A Little More Clojure. In the first…

Continue Reading## Sum of squared digits

Take a positive integer x, square each of its digits, and sum. Now do the same to the result, over…

Continue Reading## Inverse congruence RNG

Linear congruence random number generators have the form xn+1 = a xn + b mod p Inverse congruence generators have…

Continue Reading## Visualisation of Information from Raw Twitter Data — Part 1

For this post I downloaded tweets about the Brexit for a period of about two days, quering the API for…

Continue Reading## Python tips

Python tipsEldiiar EgemberdievBlockedUnblockFollowFollowingJun 16“I do not like to repeat successes, I like to go on to other things”. Walt DisneyAt…

Continue Reading## Top Python Tips & Tricks

Time Saving Tips And Tricks Of PythonTop Python Tips & TricksThese Must-Know Python Tips Make The Language BeautifulFarhad MalikBlockedUnblockFollowFollowingJun 14This article presents…

Continue Reading## Beginning Python Programming — Part 12

Beginning Python Programming — Part 12An introduction to iterators and generatorsBob RoeblingBlockedUnblockFollowFollowingJun 10Photo by Timothy Dykes on UnsplashIn our previous piece, we covered packages…

Continue Reading## Ruby Return Values

I get back the same value I put in, even though I tried to change the data?Turns out, every method…

Continue Reading## Amazon and Gold — Efficient Frontier Analysis

Which has a higher risk?If we were to make a portfolio solely out of these 2 assets, what ratio of…

Continue Reading## Comparing iOS TableView and Android RecyclerView

Comparing iOS TableView and Android RecyclerViewExploring the similarities and differences when creating lists on each platformElyeBlockedUnblockFollowFollowingMay 25When it comes down to…

Continue Reading## Intro to SwiftUI — Part 1: The language features behind it

Let’s take a look. Opaque Result TypesImagine we had a drawing library, which provided several primitive drawable types, such as lines…

Continue Reading## Optimizing Portfolios with Modern Portfolio Theory Using Python

Optimizing Portfolios with Modern Portfolio Theory Using PythonMPT and some basic Python implementations for tracking risk, performance, and optimizing your portfolio.…

Continue Reading## Write a monad, in Java, seriously?

At least not the basics!The simplest way of explaining a Monad is to tell you that it is sort of…

Continue Reading## Python and LRU Cache

Python and LRU CacheJose Alberto Torres AgüeraBlockedUnblockFollowFollowingMay 26Since version 3. 2 python we can use a decorator namedfunctools. lru_cache() , this function…

Continue Reading## Do Stocks Provide a Positive Expected Return?

The classic answer is that when we buy a share of the company, we are providing financial capital to help…

Continue Reading## Laravel — Extending Query Builder

Laravel — Extending Query BuilderDennis SminkBlockedUnblockFollowFollowingMay 24Sometimes the findOrFail() (or any other default) method is not enough and you need to have a…

Continue Reading## Counting at compile time

A genuine type-level computation. Our Nat are now ordered. (Lt, Gt, Gte can all be defined similarly or derived from…

Continue Reading## Tail recursion in Kotlin — with bytecode!

Tail recursion in Kotlin — with bytecode!Stephen LeighBlockedUnblockFollowFollowingMay 7Kotlin Island, St Petersburg. сергей володин via Google Maps. Every article on Kotlin starts by…

Continue Reading## Area and volume of Menger sponge

The Menger sponge is the fractal you get by starting with a cube, dividing each face into a 3 by…

Continue Reading## Swift: Writing simple & composable data queries using Reader Monad

Swift: Writing simple & composable data queries using Reader MonadBalraj SinghBlockedUnblockFollowFollowingMay 5Composable QueryRecently I was working on a sample project link.…

Continue Reading## Spring: Advanced search & filtering

Photo by Glen Noble on UnsplashSpring: Advanced search & filteringMilan BrankovicBlockedUnblockFollowFollowingMay 2Implementing a data access layer of an application has been…

Continue Reading## The Spaceship Operator

Let’s take a look below:Using the <=> operator and #group_by, we can transform our original array into a hash containing…

Continue Reading## An Intro to Javascript for Experienced Programmers Who Could Use a Strong Dose of Fundamentals

Use them in the body, of course. What do you think this is?(diameter) => diameter * 3. 14159265It’s a function…

Continue Reading## Explained: Futures in Rust for Web Development

+ ⛑If a crate returns a Future, you can use . and_then() to work with the result once the Future is ready.…

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