Most of the day today、I was watching YouTube。Last night I happened to see a video by Kantaro Suzuki called ``Understanding Euler's formula through junior high school mathematics.''。２、3It became a hot topic a year ago、There is a link to a book with the same title.。I had seen a glimpse of the book at a bookstore at the time.、It was around the time that the movie ``The Mathematical Formula That the Doctor Loved'' was becoming a hot topic.。Last year, Professor Shinichi Mochizuki of Kyoto University、It became an international topic of conversation for completely proving one of the most difficult problems in mathematics, the ABC conjecture.。Although it was quite a while ago、More than 300 years after Fermat's death、Even when it was announced that ``Fermat's Last Theorem'', famous as a historically difficult problem that no one could solve, had been completely proven.、The whole world was excited。There seems to be a bit of a mathematics boom in the streets in recent years.。
including me、There must be a lot of people who are not good at mathematics.。However, even such a person、Into the abstract and concise world of mathematics、It is not uncommon for people to have feelings similar to admiration.。Mathematics is the first step to science。What has been proven mathematically、No matter how much you like it or hate it、Even if you don't feel comfortable with it, you can't help but admit it.。If there is such a thing as truth, this is it.、We somehow think that。I don't understand that at all、Rather than being embarrassed、I even feel in my heart that it might actually be bad.。But、Even if I pull out my math book,、I think most people will give up again because this is so unreliable.。
That's、Euler's mathematics、It is said that the mathematical formulas of great geniuses in the field of physics can be understood with the knowledge of junior high school students.、It was stuck in the back of my mind.。動画を見ると中学生までの数学しか使わないというのではなく、「中学生までの数学的知識があれば、その上に三角関数や微分積分などの説明を加えて」オイラーの公式まで理解できるようにするというものだ。確かに理解力のある中学生なら可能かも、と思わせる平易で見事な説明だった（中身は全然平易ではない）。興味ある方はご覧あれ。東大入試問題として有名な「円周率πが3.5より小さいことを証明せよ」も、さりげないがとても面白かった。
流れで、ヨビのりたくみ氏（初めて知った）の「アインシュタインの（特殊）相対性理論」も見てしまったが、これも説明がじつに上手。こんな授業を中学、高校でやってくれたらもう少し違う道に進んだかもと思うが、それは仕方ない。corona、コロナで世の中沈む一方、しかも対策が支離滅裂状態だが、ハヤブサはちゃんと地球に帰ってくるし、地球の自転も一瞬だって止まらない。ただ現象だけにつられて右往左往するのでなく、Those that do not change、視点の置き場所を考えることで世界はもう少し違ってくると感じた一日。
