As usual with tech giants, the burden of playing whack-a-mole with the perpetrators is left to the victims, while the company profits.

You forget that √x always has 2 solutions: 1 positive and 1 negative.

The equation :

x^2 = a

where a is a positive real number has two solutions. An equation can have multiple solutions (even infinitely many solutions). Sqrt(x) is a function and as such it can have only one output for a given input. Functions don’t have solutions. By definition, sqrt(a) is the nonnegative solution of the equation x^2=a. Here, a can be zero.

It's very obvious in context that they meant the positive solution of xˆ2 = 2.

My definition of the square root is as follows: the square root of a positive real number x is the positive number, noted √x, such that (√x) ^ 2 = x. To make this a useable definition, we need to prove that equation has a solution (using the fact the function t -> t^2 is zero for t=0, diverges to +inf when t -> +inf, and is continuous between the two) and that solution is unique (using the fact the same function is strictly increasing).

Do you have any other definition of √x?

The sqrt symbol is defined as the positive root

I wonder how it would work before Javascript.

HTTP POST can handle this readily. I'm guessing a frameset with targets circa late 90s based on the current layout

Nice, but I wish they opted for an RSS feed instead.

Can't most readers parse a feed like this into one? I think they also have RSS but I don't actually read much CNN

Yeah. It's basically a God hypothesis for geeks.

If this forum were to live up to its name, you would be laughed out of here after that comment.

Yeah, it needs Javascript to display text. No thanks, bye.

Just like who knows how many bits of false information. Which then get copied, pasted and repeated across the web and the world.

I've randomly found several, and I'm just one person.

At this point, I can't help thinking it created more problems than it solved.

> 2. Bad people steal good thing.

2. Good people sell good thing to bad people.

If they know they sell to bad people, are they really good people ?

Excellent point!