Blog from Kanada

I have developed this web site even without using an HTML editor (but with Emacs). However, now I introduce a blog. I do not like a diary, so I do not intend to write daily events here. I want to revive some spoiled contents of this site. That means, I will NOT write on recent events or topics, but I will write on what I have done or on explanations on contents in this site.

P.S. I also opened a Japanese version of this blog here.

At the end of 2003, I made a web page titled SSIP Communicator. The SSIP Communicator was a program written by Java, and it was for character-based dialogue (conversation between two persons). It was not a practical program but for education in my company. I am not sure if it was successful because I used it only once. However, I like it because it is a pretty small and well-structured communication program. Recently, a protocol called SIP (Session Initiation Protocol) is used for IP telephony, video conferencing, and so on. SSIP is a similar to but much simpler than SIP.

In companies, new commers are often involved in handling complicated programs, and they may fail to grasp whole program. When I start a new project, I usually start with a program as simple as possible, and try to grasp whole system. In SSIP, I intended to try this type of practice in a protocol for conversations. It became a longer program than I had expected, but it must be shorter than other similar programs (though I was not sure if there are similar programs). The program is free to use. I hope people will use this.

In 1996, I wrote a simple calculator as study program. This is a calculator only for four basic operations (i.e., "+", "-", "*", "/"). However, it is different from normal calculators; it does not evaluate the expression until you enter "=". I feel relieved because I can find error inputs easier. JavaScript is now used everywhere, but I think this program is a more educational because it is simpler and you can see the behavior of this program more easily.