Math History
-
-
Our Mathematical Universe
- My Quest for the Ultimate Nature of Reality
- By: Max Tegmark
- Narrated by: Rob Shapiro
- Length: 15 hrs and 22 mins
- Unabridged
-
Overall523
-
Performance462
-
Story456
Max Tegmark leads us on an astonishing journey through past, present and future, and through the physics, astronomy and mathematics that are the foundation of his work, most particularly his hypothesis that our physical reality is a mathematical structure and his theory of the ultimate...
-
-
Test Your Little Grey Cells
- By Simon Gibson on 30-03-14
-
Our Mathematical Universe
- My Quest for the Ultimate Nature of Reality
- Narrated by: Rob Shapiro
- Length: 15 hrs and 22 mins
- Release date: 07-01-14
- Language: English
- Max Tegmark leads us on an astonishing journey through past, present and future, and through the physics, astronomy and mathematics that are the foundation of his work, most particularly his hypothesis that our physical reality is a mathematical structure and his theory of the ultimate...
Failed to add items
Sorry, we are unable to add the item because your shopping cart is already at capacity.Add to basket failed.
Please try again laterAdd to wishlist failed.
Please try again laterRemove from wishlist failed.
Please try again laterAdding to library failed
Please try againFollow podcast failed
Unfollow podcast failed
£17.05 or free with trial. Auto-renews at £5.99/month after trial. See eligibility.
-
-
-
A Brief History Of Mathematics
- Complete Series
- By: Marcus du Sautoy
- Narrated by: Marcus du Sautoy
- Length: 2 hrs and 13 mins
- Unabridged
-
Overall26
-
Performance22
-
Story22
This ten-part history of mathematics reveals the personalities behind the calculations: the passions and rivalries of mathematicians struggling to get their ideas heard. Professor Marcus du Sautoy shows how these masters of abstraction find a role in the real world and proves that mathematics is...
-
-
good for late maths history
- By shaheen on 17-06-25
-
A Brief History Of Mathematics
- Complete Series
- Narrated by: Marcus du Sautoy
- Length: 2 hrs and 13 mins
- Release date: 06-10-20
- Language: English
- This ten-part history of mathematics reveals the personalities behind the calculations: the passions and rivalries of mathematicians struggling to get their ideas heard. Professor Marcus du Sautoy shows how these masters of abstraction find a role in the real world and proves that mathematics is...
Failed to add items
Sorry, we are unable to add the item because your shopping cart is already at capacity.Add to basket failed.
Please try again laterAdd to wishlist failed.
Please try again laterRemove from wishlist failed.
Please try again laterAdding to library failed
Please try againFollow podcast failed
Unfollow podcast failed
£12.06 or free with trial. Auto-renews at £5.99/month after trial. See eligibility.
-
-
-
A Brief History of Time
- From Big Bang to Black Holes
- By: Stephen Hawking
- Narrated by: John Sackville
- Length: 6 hrs and 57 mins
- Unabridged
-
Overall3,146
-
Performance2,664
-
Story2,625
Brought to you by Penguin. Was there a beginning of time? Could time run backwards? Is the universe infinite or does it have boundaries? These are just some of the questions considered in the internationally acclaimed masterpiece by the world renowned physicist - generally considered to have...
-
-
Wonderful narrator
- By Erdferkel on 18-10-16
-
A Brief History of Time
- From Big Bang to Black Holes
- Narrated by: John Sackville
- Length: 6 hrs and 57 mins
- Release date: 22-09-16
- Language: English
- Brought to you by Penguin. Was there a beginning of time? Could time run backwards? Is the universe infinite or does it have boundaries? These are just some of the questions considered in the internationally acclaimed masterpiece by the world renowned physicist - generally considered to have...
Failed to add items
Sorry, we are unable to add the item because your shopping cart is already at capacity.Add to basket failed.
Please try again laterAdd to wishlist failed.
Please try again laterRemove from wishlist failed.
Please try again laterAdding to library failed
Please try againFollow podcast failed
Unfollow podcast failed
£10.34 or free with trial. Auto-renews at £5.99/month after trial. See eligibility.
-
-
-
Lost in Math
- How Beauty Leads Physics Astray
- By: Sabine Hossenfelder
- Narrated by: Laura Jennings
- Length: 8 hrs and 40 mins
- Unabridged
-
Overall93
-
Performance73
-
Story73
Whether pondering black holes or predicting discoveries at CERN, physicists believe the best theories are beautiful, natural, and elegant, and this standard separates popular theories from disposable ones. This is why, Sabine Hossenfelder argues, we have not seen a major breakthrough in the foundations of physics for more than four decades. The belief in beauty has become so dogmatic that it now conflicts with scientific objectivity: Observation has been unable to confirm mindboggling theories, like supersymmetry or grand unification, invented by physicists based on aesthetic criteria.
-
-
Interesting, informative & thought provoking read
- By JHFD on 29-12-20
-
Lost in Math
- How Beauty Leads Physics Astray
- Narrated by: Laura Jennings
- Length: 8 hrs and 40 mins
- Release date: 04-12-18
- Language: English
-
A contrarian argues that modern physicists' obsession with beauty has given us wonderful math but bad science....
Failed to add items
Sorry, we are unable to add the item because your shopping cart is already at capacity.Add to basket failed.
Please try again laterAdd to wishlist failed.
Please try again laterRemove from wishlist failed.
Please try again laterAdding to library failed
Please try againFollow podcast failed
Unfollow podcast failed
£13.98 or free with trial. Auto-renews at £5.99/month after trial. See eligibility.
-
-
-
Math 101: A History of Numbers
- By: James Johnson
- Narrated by: Monica J Olsen
- Length: 42 mins
- Unabridged
-
Overall0
-
Performance0
-
Story0
Math 101: A History of Numbers isn’t a textbook — it’s a story. A fast, listenable, journey through how we went from counting on our fingers to coding AI. From ancient bone tallies and Sumerian tokens to Renaissance ratios, algebraic revolutions, and modern machine logic, this book tracks the true evolution of math — not as cold formulas, but as a living system we built to make sense of the world.
-
Math 101: A History of Numbers
- Narrated by: Monica J Olsen
- Series: How We Figured It Out, Book 14
- Length: 42 mins
- Release date: 12-11-25
- Language: English
-
Math 101: A History of Numbers isn’t a textbook — it’s a story. A fast, listenable, journey through how we went from counting on our fingers to coding AI.
Failed to add items
Sorry, we are unable to add the item because your shopping cart is already at capacity.Add to basket failed.
Please try again laterAdd to wishlist failed.
Please try again laterRemove from wishlist failed.
Please try again laterAdding to library failed
Please try againFollow podcast failed
Unfollow podcast failed
£5.66 or free with trial. Auto-renews at £5.99/month after trial. See eligibility.
-
-
-
Mathematica
- A Secret World of Intuition and Curiosity
- By: David Bessis, Kevin Frey - translator
- Narrated by: Mike Lenz
- Length: 9 hrs and 12 mins
- Unabridged
-
Overall3
-
Performance2
-
Story2
Math has a reputation for being inaccessible. People think that it requires a special gift or that comprehension is a matter of genes. Yet, the greatest mathematicians throughout history, from Rene Descartes to Alexander Grothendieck, have insisted that this is not the case.
-
Mathematica
- A Secret World of Intuition and Curiosity
- Narrated by: Mike Lenz
- Length: 9 hrs and 12 mins
- Release date: 28-05-24
- Language: English
-
Math has a reputation for being inaccessible. People think that it requires a special gift or that comprehension is a matter of genes. Yet, the greatest mathematicians throughout history, from Rene Descartes to Alexander Grothendieck, have insisted that this is not the case.
Failed to add items
Sorry, we are unable to add the item because your shopping cart is already at capacity.Add to basket failed.
Please try again laterAdd to wishlist failed.
Please try again laterRemove from wishlist failed.
Please try again laterAdding to library failed
Please try againFollow podcast failed
Unfollow podcast failed
£15.04 or free with trial. Auto-renews at £5.99/month after trial. See eligibility.
-
-
-
Math Without Numbers
- By: Milo Beckman
- Narrated by: Soneela Nankani
- Length: 3 hrs and 53 mins
- Unabridged
-
Overall11
-
Performance8
-
Story8
Brought to you by Penguin. The only numbers in this book are the page numbers. Math Without Numbers is a vivid and wholly original guide to the three main branches of abstract math - topology, analysis, and algebra - which turn out to be surprisingly easy to grasp. Milo Beckman upends the...
-
-
Great way of thinking about math(s)
- By Jonathan on 03-06-21
-
Math Without Numbers
- Narrated by: Soneela Nankani
- Length: 3 hrs and 53 mins
- Release date: 07-01-21
- Language: English
- Brought to you by Penguin. The only numbers in this book are the page numbers. Math Without Numbers is a vivid and wholly original guide to the three main branches of abstract math - topology, analysis, and algebra - which turn out to be surprisingly easy to grasp. Milo Beckman upends the...
Failed to add items
Sorry, we are unable to add the item because your shopping cart is already at capacity.Add to basket failed.
Please try again laterAdd to wishlist failed.
Please try again laterRemove from wishlist failed.
Please try again laterAdding to library failed
Please try againFollow podcast failed
Unfollow podcast failed
£11.20 or free with trial. Auto-renews at £5.99/month after trial. See eligibility.
-
-
-
The Mathematics of the Gods and the Algorithms of Men
- A Cultural History
- By: Paolo Zellini
- Narrated by: Mark Elstob
- Length: 6 hrs and 46 mins
- Unabridged
-
Overall1
-
Performance1
-
Story1
Brought to you by Penguin. The complexity of mathematics - its abstract rules and obscure symbols - can seem very distant from the everyday. There are those things that are real and present, it is supposed, and then there are mathematical concepts: creations of our mind, mysterious tools for...
-
-
Too simplistic
- By Katarina on 20-03-21
-
The Mathematics of the Gods and the Algorithms of Men
- A Cultural History
- Narrated by: Mark Elstob
- Length: 6 hrs and 46 mins
- Release date: 27-02-20
- Language: English
- Brought to you by Penguin. The complexity of mathematics - its abstract rules and obscure symbols - can seem very distant from the everyday. There are those things that are real and present, it is supposed, and then there are mathematical concepts: creations of our mind, mysterious tools for...
Failed to add items
Sorry, we are unable to add the item because your shopping cart is already at capacity.Add to basket failed.
Please try again laterAdd to wishlist failed.
Please try again laterRemove from wishlist failed.
Please try again laterAdding to library failed
Please try againFollow podcast failed
Unfollow podcast failed
£11.20 or free with trial. Auto-renews at £5.99/month after trial. See eligibility.
-
-
-
Brief Answers to the Big Questions
- By: Stephen Hawking
- Narrated by: Ben Whishaw, Garrick Hagon, Lucy Hawking
- Length: 4 hrs and 51 mins
- Unabridged
-
Overall0
-
Performance0
-
Story0
#1 NEW YORK TIMES BESTSELLER The world-famous cosmologist and author of A Brief History of Time leaves us with his final thoughts on the biggest questions facing humankind. “Hawking’s parting gift to humanity . . . a book every thinking person worried about humanity’s future should...
-
Brief Answers to the Big Questions
- Narrated by: Ben Whishaw, Garrick Hagon, Lucy Hawking
- Length: 4 hrs and 51 mins
- Release date: 16-10-18
- Language: English
- #1 NEW YORK TIMES BESTSELLER The world-famous cosmologist and author of A Brief History of Time leaves us with his final thoughts on the biggest questions facing humankind. “Hawking’s parting gift to humanity . . . a book every thinking person worried about humanity’s future should...
Failed to add items
Sorry, we are unable to add the item because your shopping cart is already at capacity.Add to basket failed.
Please try again laterAdd to wishlist failed.
Please try again laterRemove from wishlist failed.
Please try again laterAdding to library failed
Please try againFollow podcast failed
Unfollow podcast failed
£12.59 or free with trial. Auto-renews at £5.99/month after trial. See eligibility.
-
-
-
The Secret Lives of Numbers
- A Global History of Mathematics & Its Unsung Trailblazers
- By: Kate Kitagawa, Timothy Revell
- Narrated by: Daphne Kouma
- Length: 8 hrs and 11 mins
- Unabridged
-
Overall6
-
Performance5
-
Story5
Mathematics shapes almost everything we do. From building rockets to the handheld technology that governs our day-to-day lives, we are all in debt to the mathematical geniuses of the past. But the history of mathematics is warped; it looks like a sixteenth-century map that enlarges Europe at the expense of Africa, Asia and the Americas. The Secret Lives of Numbers introduces listeners to a new group of mathematical boundary-smashers, those who have been erased by history because of their race, gender or nationality.
-
-
The reader's soothing voice
- By Anonymous on 13-10-24
-
The Secret Lives of Numbers
- A Global History of Mathematics & Its Unsung Trailblazers
- Narrated by: Daphne Kouma
- Length: 8 hrs and 11 mins
- Release date: 17-08-23
- Language: English
- Brought to you by Penguin. A revisionist, completely accessible and radically inclusive history of maths Mathematics shapes almost everything we do. But despite its reputation as the study of fundamental truths, the stories we have been told about it are wrong. In The Secret Lives of Numbers...
Failed to add items
Sorry, we are unable to add the item because your shopping cart is already at capacity.Add to basket failed.
Please try again laterAdd to wishlist failed.
Please try again laterRemove from wishlist failed.
Please try again laterAdding to library failed
Please try againFollow podcast failed
Unfollow podcast failed
£11.20 or free with trial. Auto-renews at £5.99/month after trial. See eligibility.
-
-
-
A Briefer History of Time
- By: Stephen Hawking, Leonard Mlodinow
- Narrated by: Erik Davies
- Length: 4 hrs and 21 mins
- Unabridged
-
Overall24
-
Performance22
-
Story21
FROM ONE OF THE MOST BRILLIANT MINDS OF OUR TIME COMES A BOOK THAT CLARIFIES HIS MOST IMPORTANT IDEAS Stephen Hawking’s worldwide bestseller A Brief History of Time remains a landmark volume in scientific writing. But for readers who have asked for a more accessible formulation of its key...
-
-
An accessible introduction to complicated ideas
- By Balor of the Evil Eye on 17-07-13
-
A Briefer History of Time
- Narrated by: Erik Davies
- Length: 4 hrs and 21 mins
- Release date: 27-09-05
- Language: English
- FROM ONE OF THE MOST BRILLIANT MINDS OF OUR TIME COMES A BOOK THAT CLARIFIES HIS MOST IMPORTANT IDEAS Stephen Hawking’s worldwide bestseller A Brief History of Time remains a landmark volume in scientific writing. But for readers who have asked for a more accessible formulation of its key...
Failed to add items
Sorry, we are unable to add the item because your shopping cart is already at capacity.Add to basket failed.
Please try again laterAdd to wishlist failed.
Please try again laterRemove from wishlist failed.
Please try again laterAdding to library failed
Please try againFollow podcast failed
Unfollow podcast failed
£9.70 or free with trial. Auto-renews at £5.99/month after trial. See eligibility.
-
-
-
A Brief History of Artificial Intelligence
- What It Is, Where We Are, and Where We Are Going
- By: Michael Wooldridge
- Narrated by: Glen McCready
- Length: 8 hrs and 8 mins
- Unabridged
-
Overall0
-
Performance0
-
Story0
From Oxford's leading AI researcher comes a fun and accessible tour through the history and future of one of the most cutting edge and misunderstood field in science: Artificial Intelligence The somewhat ill-defined long-term aim of AI is to build machines that are conscious, self-aware, and...
-
A Brief History of Artificial Intelligence
- What It Is, Where We Are, and Where We Are Going
- Narrated by: Glen McCready
- Length: 8 hrs and 8 mins
- Release date: 19-01-21
- Language: English
- From Oxford's leading AI researcher comes a fun and accessible tour through the history and future of one of the most cutting edge and misunderstood field in science: Artificial Intelligence The somewhat ill-defined long-term aim of AI is to build machines that are conscious, self-aware, and...
Failed to add items
Sorry, we are unable to add the item because your shopping cart is already at capacity.Add to basket failed.
Please try again laterAdd to wishlist failed.
Please try again laterRemove from wishlist failed.
Please try again laterAdding to library failed
Please try againFollow podcast failed
Unfollow podcast failed
£17.69 or free with trial. Auto-renews at £5.99/month after trial. See eligibility.
-
-
-
Patterns in Math, Art, and Nature
- By: Rich Linville
- Narrated by: Brian Downs
- Length: 26 mins
- Unabridged
-
Overall0
-
Performance0
-
Story0
A pattern is a repeated design that is found everywhere in our world and even in outer space. All around you are both simple patterns and complicated patterns. The spiral of a seashell is very complex. But, there are patterns more complicated than a seashell. When did humans discover or invent patterns? There are cave paintings that are around 10,000 years old. They show hands in a pattern with 5 fingers.
-
Patterns in Math, Art, and Nature
- Narrated by: Brian Downs
- Length: 26 mins
- Release date: 17-06-24
- Language: English
-
A pattern is a repeated design that is found everywhere in our world and even in outer space. All around you are both simple patterns and complicated patterns.
Failed to add items
Sorry, we are unable to add the item because your shopping cart is already at capacity.Add to basket failed.
Please try again laterAdd to wishlist failed.
Please try again laterRemove from wishlist failed.
Please try again laterAdding to library failed
Please try againFollow podcast failed
Unfollow podcast failed
£4.29 or free with trial. Auto-renews at £5.99/month after trial. See eligibility.
-
-
-
The Quants
- How a New Breed of Math Whizzes Conquered Wall Street and Nearly Destroyed It
- By: Scott Patterson
- Narrated by: Mike Chamberlain
- Length: 6 hrs and 27 mins
- Abridged
-
Overall15
-
Performance8
-
Story7
In March 2006, the world’s richest men sipped champagne in an opulent New York hotel. They were preparing to compete in a poker tournament with million-dollar stakes. At the card table that night was Peter Muller, who managed a fabulously successful hedge fund called PDT. With him was Ken...
-
-
Decent introduction to the subject.
- By Mr on 04-01-19
-
The Quants
- How a New Breed of Math Whizzes Conquered Wall Street and Nearly Destroyed It
- Narrated by: Mike Chamberlain
- Length: 6 hrs and 27 mins
- Release date: 02-02-10
- Language: English
- In March 2006, the world’s richest men sipped champagne in an opulent New York hotel. They were preparing to compete in a poker tournament with million-dollar stakes. At the card table that night was Peter Muller, who managed a fabulously successful hedge fund called PDT. With him was Ken...
Failed to add items
Sorry, we are unable to add the item because your shopping cart is already at capacity.Add to basket failed.
Please try again laterAdd to wishlist failed.
Please try again laterRemove from wishlist failed.
Please try again laterAdding to library failed
Please try againFollow podcast failed
Unfollow podcast failed
£10.37 or free with trial. Auto-renews at £5.99/month after trial. See eligibility.
-
-
-
Math Rock
- Genre: A 33 1/3 Series
- By: Jeff Gomez
- Narrated by: Hunter Johns
- Length: 4 hrs and 20 mins
- Unabridged
-
Overall0
-
Performance0
-
Story0
Math rock sounds like blueprints look: exact, precise, architectural. This trance-like progressive metal music with indie rock and jazz influences has been captivating and challenging listeners for decades. Bands associated with the genre include King Crimson, Black Flag, Don Caballero, Slint, American Football, Toe, Elephant Gym, Covet, and thousands more. In an online age of bedroom producers and sampled beats and loops, math rock is music that is absolutely and resolutely played: men and woman in rooms with instruments creating chaos, beauty, and beautiful chaos.
-
Math Rock
- Genre: A 33 1/3 Series
- Narrated by: Hunter Johns
- Series: Genre: A 33 1/3 Series
- Length: 4 hrs and 20 mins
- Release date: 24-04-25
- Language: English
-
Math rock sounds like blueprints look: exact, precise, architectural. This trance-like progressive metal music with indie rock and jazz influences has been captivating and challenging listeners for decades.
Failed to add items
Sorry, we are unable to add the item because your shopping cart is already at capacity.Add to basket failed.
Please try again laterAdd to wishlist failed.
Please try again laterRemove from wishlist failed.
Please try again laterAdding to library failed
Please try againFollow podcast failed
Unfollow podcast failed
£11.72 or free with trial. Auto-renews at £5.99/month after trial. See eligibility.
-
-
-
Calculus 101
- A History of Change (How We Figured It Out)
- By: James Johnson
- Narrated by: Jerome Ferguson
- Length: 59 mins
- Unabridged
-
Overall0
-
Performance0
-
Story0
Calculus isn’t just math. It’s how we figured out motion, change, curves, and reality itself. In Calculus 101, JJ takes you on a high-speed ride through the history, drama, and logic behind the most powerful tool humans ever invented. From ancient geometry and Zeno’s paradoxes to Newton’s plague-year breakthrough and the equations running Wall Street, this book breaks it all down in plain English with clarity, humor, and momentum.
-
Calculus 101
- A History of Change (How We Figured It Out)
- Narrated by: Jerome Ferguson
- Length: 59 mins
- Release date: 05-03-26
- Language: English
-
Calculus isn’t just math. It’s how we figured out motion, change, curves, and reality itself. In Calculus 101, JJ takes you on a high-speed ride through the history, drama, and logic behind the most powerful tool humans ever invented.
Failed to add items
Sorry, we are unable to add the item because your shopping cart is already at capacity.Add to basket failed.
Please try again laterAdd to wishlist failed.
Please try again laterRemove from wishlist failed.
Please try again laterAdding to library failed
Please try againFollow podcast failed
Unfollow podcast failed
£6.08 or free with trial. Auto-renews at £5.99/month after trial. See eligibility.
-
-
-
Scripts and Songs on Science and Math 2
- By: Regina Shmelkina
- Narrated by: Gary Middleton
- Length: 2 hrs and 17 mins
- Unabridged
-
Overall0
-
Performance0
-
Story0
The book Scripts and Songs on Science and Math 2 is a collection for school-age students that covers the variety of topics in science with the help of musical theatrical plays and material. They were created to help learn science by singing. It includes scripts about the creation of the periodic table of the chemical elements by Mendeleyev, the invention of the microscope by A. Leeuwenhoek in biology, the discovery of Newton’s Laws, developing Algebra, and other science-math topics. The songs and scripts speak to both the mind and heart.
-
Scripts and Songs on Science and Math 2
- Narrated by: Gary Middleton
- Length: 2 hrs and 17 mins
- Release date: 23-08-22
- Language: English
-
Scripts and Songs on Science and Math 2 is a collection for school-age students that covers the variety of topics in science with the help of musical theatrical plays and material. They were created to help learn science by singing....
Failed to add items
Sorry, we are unable to add the item because your shopping cart is already at capacity.Add to basket failed.
Please try again laterAdd to wishlist failed.
Please try again laterRemove from wishlist failed.
Please try again laterAdding to library failed
Please try againFollow podcast failed
Unfollow podcast failed
£9.47 or free with trial. Auto-renews at £5.99/month after trial. See eligibility.
-
-
-
125 Curiosidades del Mundo [125 Curiosities of the World]
- Datos Curiosos de Cultura General, Historia, Ciencia, Matemáticas y mucho más [Curious Facts About General Culture, History, Science, Mathematics and Much More]
- By: Mentes Curiosas Studio
- Narrated by: Oscar Osorio
- Length: 35 mins
- Unabridged
-
Overall0
-
Performance0
-
Story0
Este libro es mucho más que una simple colección de datos; es una puerta a las maravillas ocultas del conocimiento. A través de sus páginas, descubrirás hechos tan asombrosos como inesperados, que te harán repensar lo que crees saber sobre el mundo. Cada curiosidad está diseñada para despertar tu imaginación y ofrecerte una nueva perspectiva sobre el mundo que nos rodea. Si alguna vez te has preguntado por qué ciertos patrones se repiten en la naturaleza o cómo ciertos eventos históricos cambiaron el curso de la humanidad, aquí encontrarás respuestas que te sorprenderán.
-
125 Curiosidades del Mundo [125 Curiosities of the World]
- Datos Curiosos de Cultura General, Historia, Ciencia, Matemáticas y mucho más [Curious Facts About General Culture, History, Science, Mathematics and Much More]
- Narrated by: Oscar Osorio
- Length: 35 mins
- Release date: 15-11-24
- Language: Spanish
-
Este libro es mucho más que una simple colección de datos; es una puerta a las maravillas ocultas del conocimiento. A través de sus páginas, descubrirás hechos tan asombrosos como inesperados, que te harán repensar lo que crees saber sobre el mundo.
Failed to add items
Sorry, we are unable to add the item because your shopping cart is already at capacity.Add to basket failed.
Please try again laterAdd to wishlist failed.
Please try again laterRemove from wishlist failed.
Please try again laterAdding to library failed
Please try againFollow podcast failed
Unfollow podcast failed
£6.80 or free with trial. Auto-renews at £5.99/month after trial. See eligibility.
-