Beam Calculation in LibreOffice

Calculation in LibreOffice

Computer calculation

Here are my calculations in LibreOffice. The linked spreadsheet contains several sheets with different calculations.
These calculations include:
1. Area of section
2. Distance of CG (Center of gravity) from lower edge
3. Moment of Inertia-horizontal axis
4. Moment of Inertia-vertical axis

Moment of Inertia (of section) is a term used to describe the capacity of a cross-section to resist bending.
A beam cross-section has a center of gravity and two principal axis.
For symmetrical section (such as I-beam) principal axis are axis of symmetry.
In a formula for beam deflection, the moment of inertia is part of a denominator. If the moment of inertia is increased, the deflection decreases.