When I was a little kid, my Dad bought me one riddle book during his business trip. I was very fascinated on the riddles.
I remembered one time during the school activity of guessing riddles in the summer break, I guessed right on so many riddles and won so many rewards that my shool teacher joked at me:" MF， please donot guess the riddles any more！You almost collected all of the rewards!"
On grade 3，I discovered one formula. If you gave me any odd number, I could tell the “x” and
“y” in the fomula of N(odd number) =X^2 -Y^2 right away. At that time, I was so excited that I thought I discovered the new continent!:)
Do you want to test me?
Feel free to test me now! I can give the answer of “X” and “Y” without a calculator right away!
When I was a little kid, my Dad bought me one riddle book during his business trip. I was very fascinated on the riddles.
I remembered one time during the school activity of guessing riddles in the summer break, I guessed right on so many riddles and won so many rewards that my shool teacher joked at me:" MF， please donot guess the riddles any more！You almost collected all of the rewards!"
On grade 3，I discovered one formula. If you gave me any odd number, I could tell the “x” and
“y” in the fomula of N(odd number) =X^2 -Y^2 right away. At that time, I was so excited that I thought I discovered the new continent!:)
Do you want to test me?
Feel free to test me now! I can give the answer of “X” and “Y” without a calculator right away!
2的平方：）
I was very fascinated on (by) the riddles.
I guessed (so many riddles right) right on so many riddles and won so many rewards that my shool teacher joked at (with) me:"
On grade 3 In 3rd grade
I think I figured out how to find X and Y. X = N/2 + 1, Y = N/2 .
我就是这么找到答案哒！
嘿嘿，那时也想找偶数的规律，未果：）
谢谢指正！现在就去改！
刚才写答案的时候犯了一个错误： Y应该是N/2
嗯，因为是奇数，可以精确到0.5：）
Summer's Breezes-:))..
Sleep Tight-:))..
Dream Travel-:))..
让人想起少年高斯发现等差级数的求和的简易算法
当然，初一学了因式分解就明白背后的道理了。
赶紧来参加我们的【ChildhoodFantasy】活动啊！
https://bbs.wenxuecity.com/mysj/236972.html
有非常fancy的大奖！
对了，用中文怎么称呼你啊？：）
美凤从小善于观察和动脑，是个聪慧的女生。
如果N是质数，就是唯一整数解；如果不是，比如15，就可以是8 and 7, 4 and 1, all possbile factors.
另外，数学领域，猜想是伟大的第一步，之后才是证明。包括哥德巴赫猜想至今未证，近年刚证明的费尔马大定理，等等。
忘了起中文ID了
中学的时候兴趣比较高，当年不少兴趣相投的同学和朋友，有的继续去了北大，有的转而学了工科。
记得曾经的老师说过，书要从薄读到厚，再从厚读到薄。所谓举重若轻
爸爸是上海人-
媽媽是杭州人-
&妳好-:))。。