Open √2

Then you get one from one. Write 1 first.

On 1

Add two zeros after 1 to get 100.

Then you make (1*20+x)x less than 100, and take the maximum value of x to get x=4.

Note: 1 in 1*20 is 1 in the third line.

X=4, so (1*20+x)x=96.

Add two zeros the day after tomorrow, and it will be 400.

I'm afraid you can't understand ~ Just to remind you, it's 1.4 now, and we'll continue to determine what it is. )

Make (14*20+y)y less than 400, and take the maximum value of y to get y= 1.

Y= 1, so (14*20+y)y=28 1, 400 minus the remainder 1 19.

Add two zeros after 1 19 to get 1 1900.

Then make (14 1*20+z)z less than 1 1900, and remove the maximum value of z to get z=4.

……

Up to now, the root number 2 is equal to 1.4 14, and we can continue to do it.

The format is similar to division, just remember to multiply the determined part by 20.