# How to organize, add and multiply matrices

- Institution: TED
- Department: TED-Ed
- Speaker: Bill Shillito
- Year: 2013
- Level: For everyone
- Language: English
- Subjects: Mathematics, Economics
- Source: [TED](https://www.ted.com/talks/bill_shillito_how_to_organize_add_and_multiply_matrices)
- Licence: [CC BY-NC-ND 4.0](https://creativecommons.org/licenses/by-nc-nd/4.0/) (Non-commercial use only, and no changed versions.)
- Who can watch: Tweens profiles and older (sources give no ratings; placed by Invisible Network from the source's own words)

When you're working on a problem with lots of numbers, as in economics, cryptography or 3D graphics, it helps to organize those numbers into a grid, or matrix. Bill Shillito shows us how to work with matrices, with tips for adding, subtracting and multiplying (but not dividing!). \[Directed by David Bernal, narrated by Bill Shillito\].

## Lectures

1. [How to organize, add and multiply matrices](https://invisiblenetwork.ai/learn/ted/bill_shillito_how_to_organize_add_and_multiply_matrices/c014b30982b1), 5 min (TED's player)