Comment and I will make a assumption about you!

You taken a university level, differential equations class?

@helenS

@XenonRush Yes but my statement was wrong.

@helenS is it?

@Mona86 The disciples of Pytagoras [u]killed[/u] the man who proved that sqrt(2) cannot be expressed as a ratio of two integers.

What are integers ? @helenS

And whole positive number or negative number that’s not a decimal.
@Mona86

@XenonRush … like, 1, 2, 3, (…), and –1, –2, –3, (…) @Mona86

@XenonRush but they number 2 means more than one soooo, do you mean like 22^2 can not happen?

@Mona86 22^2 = 484. An integer like any other.

What about 19^2= 361@helenS

@Mona86 So what? The square of an integer is an integer.
You may confuse "square" and "square root (sqrt)".
Square of 4 is 16, square root of 4 is 2.

No I know sqrt is square root of I didn’t confuse it with ( plus there’s no such thing as square, in maths)@helenS