# Thread: What is the difference between R and -infinity to +infinity?

1. ## What is the difference between R and -infinity to +infinity?

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I'm a bit confused. What is the difference between R and -infinity to +infinity.

It sounds like the same set of numbers to me.

Thanks
Splint
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2. ## Re: What is the difference between R and -infinity to +infinity?

Originally Posted by Splint
I'm a bit confused. What is the difference between R and -infinity to +infinity.
The difference is in the symbols.
We use the symbol $\mathbb{R}$ to denote the set of real numbers.
So $\mathbb{R}=\(-\infty,\infty)$.