math

I just wanted to say 1=.9 repeating, any one differ?

Me.

why?

Because 1=1
so
1 cannot = .9 repetitive

A mathematical value cannot have multiple value's, because it is a single value.

That's what I used to think too Shadow. But unfortunately, I was wrong. The algebraic proof can easily be seen here:

http://en.wikipedia.org/wiki/.999

.999 repeating does in fact equal 1.

darn I wanted to prove it, it missed one though: 1/11=.09090909 reapeating and 10/11= .90909090 reapeating 11/11=.9999 reapeating.

Interesting 🤔🤔🤔

Proof that math, which is held to be the untimate logical proof, is illogical.

By the 'logic' of this premise, the use of .999 repeating is a useless figure in math and any equation using it should simply be reduced to 1.  Tell this illogical suggestion to a super computer calculating the astronomical distances to stars or the numbers of atoms in the universe.

There is a function in math that requires precision.  Rounding is never precise.

1 + .999 does not and never will = 2.

You are experiencing self imposed mental gymnastics, both are useful and both are true.

  It takes no mental effort to understand that 1 +  n<1 can not = 2.

This concept is similar to Pi.  Pi is not an actual number.  It is an approximation.  There is no actual number that you can use to multiply the diameter of a circle by to get an exact circumference.

Nope.

But for instance;

(.1)+(.01)+...+(10^-infinity) does not equal 1/9 but is (1/9)-1/infinity which is an unmeasurable approxmination of 1/9, but is not 1/9.

(1/infinity)^-1=infinity/1

While (-1/infinity)^-1=

-infinity

But 0^-1=1/0, which is equivalent to both.

https://www.chess.com/forum/view/off-topic/1-infinity-does-not-equal-0-part-2

Most of these math concepts have no function in everyday life but they are far from useless.

Because 1 - 0.(9) is equal to an infinitely small number 0.(0)1 it is clear why there is such confusion.

So 1 isn't equal to 0.(9) bit it is ALMOST equal.