Discussion about math, puzzles, games and fun. Useful symbols: ÷ × ½ √ ∞ ≠ ≤ ≥ ≈ ⇒ ± ∈ Δ θ ∴ ∑ ∫ π -¹ ² ³ °

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**popotamian****Member**- Registered: 2017-01-04
- Posts: 4

The line has 0 height and ∞ lenght so the area is 0*∞=0 but it is made from ∞ points with 0 length so 0*∞=∞.

What's your opinion about this?

*Last edited by popotamian (2017-01-04 16:04:42)*

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**bob bundy****Moderator**- Registered: 2010-06-20
- Posts: 7,738

hi popotamian

Welcome to the forum.

Mathematicians have a symbol for infinity and use it in certain topics but have found it is best not to regard it as a number, as it doesn't obey the usual rules. Your question is a good demonstration of this. Here's some more:

∞ +1 = ∞

∞ x 5 = ∞

∞ x 7 = ∞

∞ /∞ = ????

Bob

Children are not defined by school ...........The Fonz

You cannot teach a man anything; you can only help him find it within himself..........Galileo Galilei

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**Mathegocart****Member**- Registered: 2012-04-29
- Posts: 1,792

Specifically, the ubiquitous operations are not defined for infinity.

The integral of hope is reality.

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