Apparently, this user prefers to keep an air of mystery about them.
2 How to find the period of a periodic function? feb 19 '13
0 How is a $4\times 4$ Matrix built (concerning position, translation, scale and rotation)? feb 23 '13
0 How to transform this matrix & swap its columns? feb 17 '13
0 Inclined plane - euler-lagrange nov 8