# 	**Example 12.3.3a: Seismic Methods**

#Given
V1 = 1000 m/s
V2 = 4000 m/s
ic = asin(V1/V2);degrees   #Fetter 14.5 degrees


# 	**Example 12.3.3b: Seismic Methods**

#Given
V1 = 1000 m/s
V2 = 4000 m/s
Ti = 39 ms
X = 52 m
Z = (Ti/2)*(V1*V2/( (V2^2 - V1^2)^(1/2)) )   #Fetter 20 m


# 	**Example 12.3.3c: Seismic Methods**

#Given
V1= 1570 m/s
mu = 1.67e-4 s/m
md = 1.54e-4 s/m
Tid = 0.046 s
Tiu = 0.050 s
ic = 0.5*(asin(V1*md) + asin(V1*mu)); degrees  #Fetter 14.6 degrees
V2 = V1/sin(ic)  #Fetter 6230 m/s
alpha = 0.5*(asin(V1*md) - asin(V1*mu)); degrees   #Fetter -0.6 degrees
Zu = V1*Tiu/(cos(alpha)*2*cos(ic))   #Fetter 40.6 m
Zd = V1*Tid/(cos(alpha)*2*cos(ic))   #Fetter 37.3 m


# Homework Problems:

TBD