This week, we're taking another trip to ancient Alexandria to meet Diophantus, often hailed as the "Father of Algebra."

Join us as we untangle the fuzzy biography of a mathematician whose life story is a riddle, and whose monumental work, the Arithmetica, started us working towards systematic equation-solving. From the proto-symbols of syncopated algebra to the birth of Diophantine equations (where only whole numbers dare to tread!), we explore how this ancient Greek genius sought to generalize mathematical problems, shifting math from "apples" to "variables."

Keywords: Diophantus, Algebra, Arithmetica, Diophantine Equations, Ancient Greece, Alexandria, History of Mathematics, Number Theory, Equation Solving, Rational Numbers, Integers, Fermat's Last Theorem, Hilbert's 10th Problem, Undecidability, Al-Khwarizmi, Brahmagupta, Cryptography, Computer Science, Podcast.

Hashtags: #MathematiciansPodcast #Diophantus #AlgebraHistory #AncientMaths #NumberTheory #DiophantineEquations #MathsPodcast #STEM #HistoryOfScience #Fermat #HilbertProblems #ProblemSolving #MathsFacts #Alexandria #EquationSolver #MathematicalJourney #ListenAndLearn

The music was- "Danse Macabre - Finale" Kevin MacLeod (incompetech.com) Licensed under Creative Commons: By Attribution 3.0 http://creativecommons.org/licenses/by/3.0/

Imagine writing a book so influential it becomes the undisputed authority on the nature of the universe for the next 14 centuries. Now, imagine its core premise is completely wrong. That's the legacy of Claudius Ptolemy.

In this episode, we're exploring the ancient world's ultimate spreadsheet guy. Ptolemy didn't just guess that the Earth was the centre of the cosmos; he built a stunningly complex and predictive mathematical model to prove it; a system of circles-on-circles that could accurately chart the strange, looping paths of the planets.

We'll follow his influence from the library of Alexandria to the courts of Islamic scholars and the universities of Renaissance Europe. We'll look at his world maps that inspired Columbus (for better or worse) and his theorems that enabled modern trigonometry. This is the story about the power of a useful idea and why, in the history of maths, being right isn't always the most important thing.

Join Benjamin Cornish as he uncovers the story of Theon of Smyrna (c. 70 CE), the ancient world's ultimate study-guide writer!

He wasn't a revolutionary, but Theon's "Mathematical Matters Useful for Reading Plato" was a game-changer for anyone trying to decipher the mathematical underpinnings of Plato's philosophy.

In this episode, we explore:

• Theon's life and philosophical context as a Middle Platonist.

• His monumental work: a comprehensive guide to Pythagorean and Platonic arithmetic, music theory, and a glimpse into ancient astronomy.

• The fascinating world of ancient "number personalities," where numbers were categorized as noble, deficient, or abundant

• The monochord : how Theon used a simple instrument to demonstrate the mathematical structure of music and the cosmos.

• Why Theon's seemingly unoriginal work was crucial for preserving Greco-Roman mathematical thought through the Islamic Golden Age and beyond.

Discover the often-overlooked importance of the "Great Explainers" – the compilers and clarifiers who ensure that genius remains accessible. Theon didn't just push knowledge forward; he carried it, providing the essential "cheat sheet" for understanding the universe through numbers and the role of maths.

Keywords: Theon of Smyrna, Plato, ancient maths, history of maths, Pythagoras, Nicomachus, Middle Platonism, Greek philosophy, mathematical history, arithmetic, music theory, astronomy, monochord, harmony of the spheres, perfect numbers, figurate numbers, ratios, ancient Greece, Roman Empire, historical figures, mathematical concepts, podcast, education, Benjamin Cornish, The Mathematicians Podcast.

Hashtags: #TheonOfSmyrna #HistoryOfMaths #AncientMaths #Plato #Pythagoras #MathematicalHistory #Podcast #MathsEducation #Philosophy #GreekMaths #Arithmetic #MusicTheory #Astronomy #AncientGreece #TheMathematiciansPodcast #STEM

The music was:

"Danse Macabre - Finale" Kevin MacLeod (incompetech.com) Licensed under Creative Commons: By Attribution 3.0 http://creativecommons.org/licenses/by/3.0/