"Terrible Science" (Ren Woxing Algebra) finished reading 150 words.

This book can be classified as a popular mathematics reading.

This is a book written by an imaginative writer, who asked the opinions of readers who love him.

The interesting things about algebra in mathematics are all here, and what you can't learn in textbooks will only be mentioned a little.

There are also exquisite illustrations, and each illustration is a joke.

There are stupid Gollac people, savage slaughter market, mathematician SEG, people from Misty Manor, Professor Findic, Maevis, Lear, Brett, Pongo and others who have all appeared to teach you to start with the most basic ordinary algebra and use algebra instead of shopping list to calculate the total price; Teach you the five laws of equation shift; Teach you to solve the life of Diophantine; Teach you to pack and unpack secondary items and install emergency buttons for free; Teach you some algebra tricks; Show you a pure mathematician; Also, how to rob a bank or even destroy the world!

Speaking of destroying the world, it's true, if you are confused by this paradox. I extract a short paragraph:

Zero number verification

We choose any two equal numbers, called A and B. ..

If A and B are equal, it can be written as A = B. Remember, as long as we treat the numbers on both sides of the equal sign in the same way, we can do whatever we want.

③ Multiply both sides by a, a? =ab

④ Subtract B from both sides at the same time? ，a？ -B? =ab- b？

(5) On the left side of the equal sign, we get a? -B? Square difference. Back on page 104, we find that we can write the square difference as

(a-b)(a+ b), on the right side of the equal sign, we can put ab- b? Decomposition into b(a-b) and change the equation to:

(a-b)(a+ b )= b(a-b)

⑥ divide both sides by (a-b) at the same time, and get (a+b) = b.

⑦ Remove the brackets: A+B = B.

(8) Subtract a+b-b=b-b from both sides at the same time.

Pet-name ruby so a=0.

Attending We didn't say which number A starts from, so A can be any number. Now, we have proved that any number is equal to 0!

This is a rather dangerous conclusion. We live in a world, but if you prove 1=0, then the world will disappear!

Just kidding, the world won't disappear, but have you been fooled? The mistake of this conclusion lies in: a=b, a-b=0, and the sixth step of dividing by both sides at the same time (a-b) is equal to dividing by 0 at the same time, and we have been taught since childhood that "0" cannot be divided, because 0 multiplied by any number is equal to 0, so any number divided by 0 will become 0!

This book not only brought me a lot of joy and knowledge, but also made me understand a lot of truth, just like Verification Zero. I didn't expect my mother to think of ginger or old spicy! (Don't mind the improper use of words) And: Do things seriously and don't miss anything, otherwise, the world may disappear!

This book has further improved my understanding of algebra, but some of them are also very profound to me. I hope you like the book I recommended and really make algebra yours!