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Thread ID: 136673 2014-03-29 20:57:00 Double tilde Greg (193) PC World Chat
Post ID Timestamp Content User
1371571 2014-03-29 20:57:00 What does this symbol mean in maths? ≈

I should know the answer having got nothing less than A+ in my maths papers at uni, but buggered if I can remember it ... living beyond my expected years does have its drawbacks!!! :o
Greg (193)
1371572 2014-03-29 21:04:00 is approximately equal to

x ≈ y means x is approximately equal to y.


From Wiki


Although...what the hell is approximately equal anyway? Sounds like a guess. Builders - hey this beam is ≈ to the other one......right.
pctek (84)
1371573 2014-03-29 21:27:00 Although...what the hell is approximately equal anyway? Sounds like a guess. Builders - hey this beam is ≈ to the other one......right. LOL @ you! :thumbs: But thanks. As I said, I feel dumb cos I shoulda know that. Greg (193)
1371574 2014-03-29 21:30:00 Close enough that for most intents and purposes it is the same, but when you get right down to it, it isn't. Agent_24 (57)
1371575 2014-03-30 01:29:00 It means identical, but not as quite identical as our deluxe model, available at extra cost. ;) R2x1 (4628)
1371576 2014-03-30 02:15:00 Close enough that for most intents and purposes it is the same, but when you get right down to it, it isn't.

Yep. I can't imagine maths (usually such a precise thing) having such a symbol.
Husbands first ever bathroom DIY, he ≈ two wall panels.

That's why we ended up with a join/patched on bit in one of them ever after....
pctek (84)
1371577 2014-03-30 04:57:00 is approximately equal to

x ≈ y means x is approximately equal to y.


From Wiki


Although...what the hell is approximately equal anyway? Sounds like a guess. Builders - hey this beam is ≈ to the other one......right.

Well. you've really answered your own question, this is where maths meets the physical world of impreciseness and approximation.

What is much more amazing is how well the abstract but precise world of mathematics is able to describe and model the real world.
Terry Porritt (14)
1371578 2014-03-30 04:57:00 Although...what the hell is approximately equal anyway? Sounds like a guess. Builders - hey this beam is ≈ to the other one......right.

22/7 ≈ pi. ;)
pcuser42 (130)
1371579 2014-03-30 06:43:00 22/7 ≈ pi. ;)


Actually 22/7 does = pi. Where the difficulty lies is converting the fraction to decimal.

Thus 3.14159 ≈ pi.



Damn I'm boring. Soz. :D
Winston001 (3612)
1371580 2014-03-30 07:28:00 Actually 22/7 does = pi. Where the difficulty lies is converting the fraction to decimal.


22/7 > pi, there have been multiple proofs of this.

@pctek - if the two beams differ in length by 3 microns, then technically they would be approximately equal, but the difference is so minuscule as to be effectively zero.
inphinity (7274)
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