最近二つの問題を解きながら以上の課題を触りました。 Differential equations were used for deducing that x'(t) = Ax(t) can be solved to yield x(t) = (e^(At))x(0) where A is a matrix. The problem is to find the vector x(0) which produces the o…

Standard model of particle physics標準モデル1. Similar to periodic table of elements2. Lie groups U, LU, mean what3. Symmetries mean what?4. Fields mean what?5. Why are some fields defined as left-handed? Lie groups seem to be distinct fro…

同期システムの困難さ。how to track which files are in synch worth server, which are more recent, and which are less so. The server is 本来an ftp server, but we the put and get operations are being run automatically based on フォルダーの違…

ウィンドウズ・オン・ウィンドウズ（ＷＯＷ）で３２ビットのソフトが６４ビットのＯＳ上に動きます。 64-bit tends to refer to 1. the size of the memory address space. 2. the width of registers. It seems that addresses in the text and data segmen…