Prologue Again, to reach the beauty of mathematics 4

Chapter 1 My hobby is mathematics

Rediscovering Hobbies 21
My friend, math! 27
Got hit in math class! 34
Thinking, writing, speaking, one day mathematics came to me 40

44 Changes in Thinking Through Mathematics

Chapter 2: A Novel-Like Story of Mathematics in History

Where can I use my math skills? 49
From Philosophy to Science: The Birth of Mathematics 57
Thales, who studied electricity 2,000 years before Edison
The Pythagoreans, a secret society with knowledge rivaling cults, 84
The Bible of Geometry: Euclid's Elements 101
Archimedes, a popular star in the history of mathematics 115
Cardano's turbulent cubic equation 125
“The Earth revolves in an ellipse,” Kepler 141
Descartes, the mediator of geometry and algebra, 150
Great Amateur Mathematicians, Fermat and Pascal 162
The Subtle Battle Between Newton and Leibniz 174
186 Everyday Messages from Mathematicians
Euler's Amazing Diligence 188
Intellectual Property Again! 192
Parisian Salon Culture 200
A Literary Exploration of Mathematical Time 204
Women Who Do Math Are Dangerous 222

Chapter 3: Becoming an Amateur Mathematician

The Reality of Becoming an Amateur Mathematician 241
Enjoy the Beauty of Mathematics Through Problem Solving 272
Fox Study Method for Middle and High School Students 288
305 To reach mathematics beyond problem solving

Epilogue: The Fourth Industrial Revolution, Humans, and Mathematics 310

"If you're stuck on the second floor of Starbucks and don't know what to do, here's a napkin I'll write down for you. Would you like to solve a factoring problem? You can put your smartphone away for a moment.
I recommend math as a digital detox for you!”

★ A Math Memories Everyone Can Relate to - An Eccentric Novelist Shares How He Overcame His Fear of Math

Anyone who has ever consciously avoided eye contact during math class in case the teacher ordered them to do so, anyone who felt their heart pound and their mind go blank when trying to solve a problem, or anyone who has ever been slapped or yelled at like the author can relate to the fear of math.
The author, who was once a water phobia, shares his experience of how he overcame his fears and regained his confidence.


- The teacher got angry and hit my cheek hard with his palm, like a 'robot Taekwondo V'.
I was already so weak that my head suddenly turned and I fell down under the podium.
No tears came out.
Because I thought I was stupid for not being able to solve such a small problem.




★ The Secret of Formulas Through the History of Mathematics - An Eccentric Novelist Delves into the History of Mathematics to Unravel Formulas

The more difficult math is for people, the more they need to try to understand it with their heart rather than trying to understand it with numbers or logic.
When you learn about how mathematics has lived throughout history, before the mathematical formulas we memorize so easily were created, many formulas that were once just equations become friends.
Thales, Pythagoras, Euclid, Archimedes, Kepler, Descartes, Fermat and Newton, etc.
Through their lives, which are sometimes comical and sometimes awkward, we encounter mathematics in everyday life that is never boring.

- I couldn't understand a single thing about the formula, but I learned a lot by reading the historical background in text.
The truth is that mathematics isn't solely about numbers, as we've long assumed! It's deeply philosophical and historical.
In this process, I learned lessons that greatly broadened my interests.
Philosophy, mathematics, history, art, and literature are ultimately one.


★ Women Doing Math Is Dangerous - The World of Female Mathematicians We Never Knew

Girls are bad at math and science?
This book refutes this claim, which has been accepted as an established theory for a very long time, by citing the examples of various female mathematicians.
From Hypatia of ancient Egypt, known as the first female mathematician, to Ada Lovelace, the world's first computer programmer, and Maryam Mirzakhani, an Iranian who won the Fields Medal, the equivalent of the Nobel Prize of mathematics, in 2014.
A surprising and entertaining story unfolds about the lives of female mathematicians.


- Emmy Noether was a person who studied the theory of relativity with Einstein.
While in Germany, she continued to teach and conduct research, even though she was not paid because she was not a full professor.
She chose a life of poverty to pursue her mathematical studies, and lived frugally with little help from her family.
She was often teased for wearing loose-fitting dresses and woven shoes, but Noether didn't mind.
Even when she became a visiting professor at the University of Göttingen in 1922, her unofficial title was associate professor.
There is only one reason: Noether was a woman.



★ The Fox Study Method for Middle and High School Students - Tips learned while working as a math instructor, study math like a fox!

During my time as a math instructor, I proposed the Fox Study Method based on research on the characteristics of students who are good at math and those who are bad at math.
It contains 7 habits you must give up if you want to pursue math as a hobby, tips for creating a study schedule, etc.

- We have heard from our teachers, “Study like an idiot! Study like a bear!”
The shortcut to studying well is to just sit there and study to the point where you look stuffy and ignorant.
Is studying really that stupid and like a bear?