Post something your country gave to the world

Trigonometry

Greece

Short answer: both India and Greece played key roles, but in different ways.

Ancient Greece
• Greek mathematicians like Hipparchus (2nd century BCE) and Ptolemy developed trigonometry as a formal mathematical discipline.
• They focused on geometry and used chords of circles (not sine/cosine yet).
• Trigonometry was mainly used for astronomy.

Ancient India
• Indian mathematicians later transformed trigonometry into the form we recognize today.
• Scholars like Aryabhata (5th century CE) introduced sine (jya) and cosine concepts.
• India developed tables of sines, practical formulas, and applied them widely in astronomy.
• Many modern trig functions come directly from Indian work, later transmitted to the Islamic world and Europe.

So who “invented” it?
• Greece: laid the foundations using geometry and chords
• India: developed sine-based trigonometry, which became the modern system

Conclusion:
Trigonometry was not invented by a single civilization. It evolved over time, with Greek foundations and Indian innovations shaping what we use today.

This is what ChatGPT says

@Alientcp said in #20: > > Trigonometry > > Greece > Short answer: both India and Greece played key roles, but in different ways. Ancient Greece • Greek mathematicians like Hipparchus (2nd century BCE) and Ptolemy developed trigonometry as a formal mathematical discipline. • They focused on geometry and used chords of circles (not sine/cosine yet). • Trigonometry was mainly used for astronomy. Ancient India • Indian mathematicians later transformed trigonometry into the form we recognize today. • Scholars like Aryabhata (5th century CE) introduced sine (jya) and cosine concepts. • India developed tables of sines, practical formulas, and applied them widely in astronomy. • Many modern trig functions come directly from Indian work, later transmitted to the Islamic world and Europe. So who “invented” it? • Greece: laid the foundations using geometry and chords • India: developed sine-based trigonometry, which became the modern system Conclusion: Trigonometry was not invented by a single civilization. It evolved over time, with Greek foundations and Indian innovations shaping what we use today. This is what ChatGPT says

CCAK0123456789

Btw the zero as we know it today was invented by Brahmagupta and Aryabhatta then demonstrated different theories.

Alientcp

@CCAK0123456789 said in #22:

Btw the zero as we know it today was invented by Brahmagupta and Aryabhatta then demonstrated different theories.

Mayans never crossed to the old world, yet, they invented the 0. They also invented the famous Mayan calendar, which is tied to astronomy.

The point is that its kinda hard to pinpoint the origin of many discoveries as most civilizations had knowledge and foundations from neighboring ones and travel was somewhat easily accessible and its easier to pinpoint where civilizations were isolated or semi isolated.

@CCAK0123456789 said in #22: > Btw the zero as we know it today was invented by Brahmagupta and Aryabhatta then demonstrated different theories. Mayans never crossed to the old world, yet, they invented the 0. They also invented the famous Mayan calendar, which is tied to astronomy. The point is that its kinda hard to pinpoint the origin of many discoveries as most civilizations had knowledge and foundations from neighboring ones and travel was somewhat easily accessible and its easier to pinpoint where civilizations were isolated or semi isolated.

Appleguy306

Penguins armed to the teeth with bombs >:)

salmon_rushdie

@CrosbyCarter said in #17:

coffee I live in oregon

more like, Weed - I live in Oregon

@CrosbyCarter said in #17: > coffee I live in oregon more like, Weed - I live in Oregon

Noflaps

edited

Relentless (and fashionable) self-criticism.

Hmmm. I could be from several countries, based upon that.

Notice which countries I could NOT be from, however.

Relentless (and fashionable) self-criticism. Hmmm. I could be from several countries, based upon that. Notice which countries I could NOT be from, however.

Capuccino_Assassino