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  When and How to Use the Go Channel

Go’s concise structure and powerful native library enable us to hit the ground running easily. It is more efficient than Java or Python when implementing the same functions, especially its concurrent programming, which is very handy and widely admired due to its goroutine and channel. goroutine and channel has much to dig into, and let’s start with channel, which I used to consider narrowly as a message queue to transfer data between gorouti...

   GOLANG,CONTEXT,CHANNEL     2022-09-17 23:06:36

  Eleven Equations True Computer Science Geeks Should (at Least Pretend to) Know

This idea is a complete rip off an article that appeared in Wired a little while ago and it got me thinking what would my list for Computer Science look like?  Plus I thought it might be a fun post and unlike the Wired list this one goes to eleven.  So here they are in no particular order: Binomial Coefficient The Binomial Coefficient equation generates Pascal’s Triangle and gives you the coefficients for the Binomial Theorem these ideas are often attributed to Pa...

   Algorithms,Computer science,Euler formula,Fermat     2011-11-29 08:42:50

  Why Software Projects are Terrible and How Not To Fix Them

If you are a good developer and you’ve worked in bad organizations, you often have ideas to improve the process.  The famous Joel Test is a collection of 12 such ideas.  Some of these ideas have universal acceptance within the software industry (say, using source control), while others might be slightly more controversial (TDD).  But for any particular methodology, whether it is universally accepted or only “mostly” accepted, there are a multitude of o...

   Software,Development,Debug,Design     2011-11-21 10:27:05

  A Fun Approach To Creating More Successful Websites

As Web designers and developers, each project we work with has a unique set of goals and requirements. But one goal we have for all of our projects is that we want them to make an impression on people — we want the websites that we create to be memorable. A fun experience is often an enjoyable one and an enjoyable experience is usually a memorable one. Therefore, it stands to reason that one of the ways to create a memorable experience is to make it a fun experience. In this article,...

   Web design,Elements,UI,Success     2012-03-05 05:10:07

  #46 – Why software sucks

No one makes bad software on purpose. No benevolent programmer has ever sat down, planning out weeks of work, with the intention of frustrating people and making them cry. Bad software, or bad anything, happens because making things is hard, making good things doubly so. The three things that make it difficult are: Possessing the diverse skills needed not to suck.Understanding who you’re making the thing for.Orchestrating the interplay of skills, egos and constraints over the course of...

   Software design,Sucks,Software industry     2012-03-19 13:10:37

  Comparing Floating Point Numbers, 2012 Edition

We’ve finally reached the point in this series that I’ve been waiting for. In this post I am going to share the most crucial piece of floating-point math knowledge that I have. Here it is:[Floating-point] math is hard.You just won’t believe how vastly, hugely, mind-bogglingly hard it is. I mean, you may think it’s difficult to calculate when trains from Chicago and Los Angeles will collide, but that’s just peanuts to floating-point math.Seriously. Each ti...

   Floating point number,Comparison,True value     2012-02-23 07:11:03

  JavaScript Attack/Defend

As developers and designers we work hard to build visually attractive, fast and easy to maintain applications. Our goals are to make sure the applications we build stick to users and keep them coming back for more. Security is not always at the forefront of our minds. No one intentionally builds insecure software but often a lack of security knowledge leads developers to build vulnerabilities into their applications. In this article we are going to examine two web security attacks, how they are ...

   JavaScript,Attack,Defend,Security,Cross site     2011-10-13 13:09:11

  Translating math into code with examples in Java, Racket, Haskell and Python

Discrete mathematical structures form the foundation of computer science.These structures are so universal that most research papers in the theory of computation, programming languages and formal methods present concepts in terms of discrete mathematics rather than code.The underlying assumption is that the reader will know how to translate these structures into a faithful implementation as a working program.A lack of material explaining this translation frustrates outsiders.What deepens that fr...

   Math,Algorithms,Formula,Program,Python     2011-11-14 08:43:15

  C++11 multithreading tutorial

The code for this tutorial is on GitHub: https://github.com/sol-prog/threads. In my previous tutorials I’ve presented some of the newest C++11 additions to the language: regular expressions, raw strings and lambdas. Perhaps one of the biggest change to the language is the addition of multithreading support. Before C++11, it was possible to target multicore computers using OS facilities (pthreads on Unix like systems) or libraries like OpenMP and MPI. This tutorial is meant to get you st...

   C++,Multithreading,Standard 11,Demo     2011-12-18 00:50:35

  Designing Fun

What is “Fun?”“I’ll know it when I see it.”In 1964, in Jacobellis v. Ohio, the US Supreme Court needed to decide whether the state of Ohio could ban a film it called “obscene”—a concept people understood but were hard-pressed to define. Justice Potter Stewart, in his concurring opinion, wrote: “I shall not today attempt further to define the kinds of material I understand to be embraced within that shorthand description; and perhaps I ...

   Design,Fun,Create,Define,Research     2011-09-19 13:35:12

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