Delaying Investment in Fixed Income Instruments

An interesting problem that I perceive exists in selecting a fixed income instrument is whether or not it makes sense to wait for a better instrument some time in the future. For instance, if interest rates are likely to go up, and some new certificates of deposit with better rates are likely to become available…

Vector Analysis – Parabolic Coordinates

There are many orthogonal curvilinear coordinate systems. One of those is parabolic coordinates. In this post I will look at how parabolic coordinates are related to Cartesian coordinates in 3 dimensional space. I will determine unit vectors in parabolic coordinates in terms of Cartesian coordinate unit vectors. I will determine the arc length of a moving…

Vector Analysis – Operations, Coordinate Systems & Arc Lengths

This post is the first in a series of example evaluations of interesting (to me) vector problems. There is plenty of literature available on the how and why of vector analysis. So while this series will not be a deep exploration, hopefully some of the problems and solutions are of interest for the reader. Problem…