Linear interpolation: estimate a data point between points
Interpolation options for interp1():
Practice exercise for interp1() and 'spline':
Context Example: Thermodynamic properties: using steam tables
Use linear interpolation to determine the internal
energy at 215°C. Use linear interpolation to determine the temperature if the
internal energy is 2600 kJ/kg.
[insert whiteboard]
Context Example: Thermodynamic properties: expanding the steam tables
Two-dimensional interpolation
Use interp2()
