Mech 417 Homework 7 assigned 1/29/19 due 2/05/19

# 1 Reference: 
https://www.clear.rice.edu/mech517/Class_notes/ParametricLinePressure.pdf
 
Mech 417
Repeat the above solution replacing the pressure with a quadratic
interpolation, while leaving the geometry interpolated linearly.
After the integrals are complete set the internal node pressure
to the average of p_1 and p_2 before substituting the numerical 
values.

HINT: The numerical answers to all parts should be unchanged.

Mech 517
Instead of solving the above problem use a cubic pressre interpolation.
After the integrals are complete set the internal node pressures
to linear from p_1 and p_2 before substituting the numerical values.