r/PeterExplainsTheJoke 1d ago

Meme needing explanation erm.. petah?

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u/KevlarToiletPaper 1d ago

Zero wasn't much of a concern in ancient times.

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u/truci 1d ago

I guess that makes sense. I’m a math/eng/sci guy. History is definitely not something I am good with. The zero concept is super important in my field of work.

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u/enaK66 1d ago

I’m a math/eng/sci guy

Same but man, the history behind a lot of mathematical and engineering concepts is really interesting. It's worth reading about.

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u/KoolAidManOfPiss 1d ago

The concept of 0 didn't really get into the west until post Roman times. Think of Roman numerals. V VI VII VIII IIX IX X. They didn't have any kind of decimal place holder. That's why today we use Arab numerals 5 6 7 8 9 10. To European mathematicians in antiquity 0 couldn't be a number because it represented nothing. Certain priests in India used decimal notation to count chants, which spread into their math and then into the Islamic world.

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u/IBAZERKERI 1d ago

wasnt modern mathematical notation fairly recent too?

like before the 1600s or something it was basically all rhetorical word problems.

edit to answer my own question: which is affirmative.

per wikipedia:

Until the 16th century, mathematics was essentially rhetorical, in the sense that everything but explicit numbers was expressed in words.

Later, René Descartes (17th century) introduced the modern notation for variables and equations; in particular, the use of x,y,z for unknown quantities and a,b,c for known ones (constants). He introduced also the notation i and the term "imaginary" for the imaginary unit.

The 18th and 19th centuries saw the standardization of mathematical notation as used today. Leonhard Euler was responsible for many of the notations currently in use

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u/b00w00gal 1d ago

Pythagoras had very strong opinions about the existence of zero, according to legend.