Introducing
Prezi AI.
Your new presentation assistant.
Refine, enhance, and tailor your content, source relevant images, and edit visuals quicker than ever before.
Trending searches
Loading content…
Loading…
Le Bâton de Jacob :
Transcript
Jacob's staff, an old device :
When was it used ?
14th century-17th century
later replaced by the more precise sextants.
Math explanation
What was it used for ?
Who invented it ?
tan A = BC/AC
A mathematician (Levi ben Gerson) of Provence.
Measure angles in astronomy and navigation
How does it work ?
What does it look like ?
How to use it ?
Choose a template
Presentations from around the world
Learn more about creating dynamic, engaging presentations with Prezi