Scala: What do “effect” and “effectful” mean in functional programming?

When you get started with functional programming (FP) a common question you’ll have is, “What is an effect in functional programming?” You’ll hear advanced FPers use the words effects and effectful, but it can be hard to find a definition of what these terms mean.

A gallery of 130+ Gimp filters/effects examples

There are times when I work on images a lot with Gimp, and then there are times when I don’t work with Gimp for a month or two. When I don’t work with Gimp a lot, I tend to forget about all of the different things I can do with. Therefore, I have created this page as a “Gimp special effects cheat sheet” page to help remind me of all the cool things I can do with Gimp effects.

How to install Script-Fu scripts to work with Gimp (Mac OS X)

I couldn’t get the Gimp “Reflection” filter to work (on Gimp 2.8), so after a little digging around I found that the GimpHelp.org website has kept some of the Gimp scripts — called Script-Fu scripts — up to date. So I downloaded those scripts, and then had to figure out how to make them work in Gimp.