2.3 Piecewise linear approximation of the log-log graph

We will draw line segments to approximate the graph of log CD vs log Re, so that we can use these formulas for later calculations.

2.3.1 The approximation for Re < 0.5

2.3.2 The approximation for 10^3 < Re < 10^5

Up to 2. The Graph of the Drag Coefficient verses Reynolds Number