eigen-value calculation of continuous beams

Compute the eigenfrequencies and mode shapes of a continuous beam with different BCs.

The eigenfrequencies and mode shapes of a simple beam are calculated based on [1]. Two files are attached:
- eigenModes.m: a function used to compute the eigenfrequencies and modes shapes of a continuous beam with different boundaries conditions.
- Example.m is an application of this function.
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4 boundaries conditions are included:
- pinned-pinned
- clamped-free
- clamped-clamped
- clamped-pinned
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2 Geometries:
- rectangular beam
- cylinder
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During the calculation procedure, It is assumed that:
- There is no structural coupling between the different degrees of freedom of the beam
- The beam is homogeneous
- The beam is un-damped
- there are free oscillations
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[1] Engineering vibration, Daniel J. Inman (3rd edition), near page 500