One of our girls visits the 7th grade (13 years, secondary school) right now. In geometry, they are talking about the congruence rules for triangles and triangles in general. Yesterday’s homework included a geometrical problem: construct the space diagonal of a cube geometrically and specify its length (side length of the cube is 5.3cm). While [...]
It wasn’t planned that way, but it turned out that I had to write a WordPress plugin myself to solve a problem. I want to have a Google Web Toolkit application run inside my blog. No big deal, but I couldn’t accomplish one tiny detail. GWT applications need a meta tag with the name gwt:module [...]
Everybody who is programming is using one or more of them. My favorite programming editor is Epsilon from Lugaru Software Ltd., and that since 1996. It’s around since 1984. Although my first version was for DOS, Windows, and OS/2, I used it primarily under DOS for writing C programs. I started in 1978 with a [...]
While operating synformation together with an Oracle database (prior to version 10g), the following error can occur during page compilation: FATAL ERROR IN TWO-TASK SERVER: error = 12571 ksedmp: internal or fatal error This error is logged by Oracle in the user dump trace files. After this error has occurred, no more pages can be [...]
When you build a software system, something can go wrong. You have to plan for that. It can be a programming error, an operator error, or a situation you haven’t planned for. I’m pretty sure you have seen web pages giving you cryptic error messages, thus indicating that something went wrong. In many cases, the [...]