Wall Observer BTC/USD - Bitcoin price movement tracking & discussion

[vroom]

1 BTC = 1 BTC

or is it

1 BTC == 1 BTC

?

technically the first statement is not a boolean.

but the second statement is TRUE .  

..but if you compare strings you have to use quotes

"1 BTC" == "1 BTC"

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[OutOfMemory]

Computing Pi beyond 40 digits is pointless except as an academic exercise. Any phone today can compute pi to 100 digits even with inefficient programming.

The most distant spacecraft from Earth is Voyager 1. It's about 12.5 billion miles away. NASA only needs 15 decimal digits of pi to have an error margin of 1.5 inches at that distance.

If we used 40 digits of pi, you could calculate the circumference of the entire known or visible universe. About 46 billion light-years. To an accuracy equal to the diameter of a hydrogen atom.

There is no need for 1 million digits of pi, or waste 100 days to calculate trillions of digits.

https://www.jpl.nasa.gov/edu/news/2016/3/16/how-many-decimals-of-pi-do-we-really-need/

I think I just printed pi on one of my school paper notebooks or something to 50 digits and used that as the cover. 3.1415xxxxxx ... heh.

What's the value of Pi?

Mathematician - 3.141592653589793238462643383279502884197169399375105820974944592307816406286 208998628034825342117067982148086513282306647093844609550582231725359408128481
Physicist - 3.14159265358979323846264338327950288419716
Engineer - about 3 something

Engineers use a minimum of 3 significant digits as a rule.

Dude, you just ruined a mathematician's joke 

[OutOfMemory]

1 BTC = 1 BTC

or is it

1 BTC == 1 BTC

?

technically the first statement is not a boolean.

but the second statement is TRUE .  

..but if you compare strings you have to use quotes

"1 BTC" == "1 BTC"

Put this way,

"1 BTC" = "1 BTC"

would just raise an error, right?

[Biodom]

From reddit:
https://www.reddit.com/r/Bitcoin/comments/m5ql80/oc_you_spelled_hold_wrong/

[Hueristic]

1 BTC = 1 BTC

or is it

1 BTC == 1 BTC

?

technically the first statement is not a boolean.

but the second statement is TRUE .  

..but if you compare strings you have to use quotes

"1 BTC" == "1 BTC"

Put this way,

"1 BTC" = "1 BTC"

would just raise an error, right?

Well I guess a variable of "1 BTC" could recursively store itself and then lead to an "OutOfMemory" situation.

[OutOfMemory]

1 BTC = 1 BTC

or is it

1 BTC == 1 BTC

?

technically the first statement is not a boolean.

but the second statement is TRUE .  

..but if you comparejavascript:void(0); strings you have to use quotes

"1 BTC" == "1 BTC"

Put this way,

"1 BTC" = "1 BTC"

would just raise an error, right?

Well I guess a variable of "1 BTC" could recursively store itself and then lead to an "OutOfMemory" situation.

hmm, i doubt so. It's an (anonymous) string literal, which should be read-only (const).
But i got the joke and i like it
Are there "named variables" in this manner in any language you are aware of?
There are quite some freaky languages out there, like the famous INTERCAL

[_javi_]

Computing Pi beyond 40 digits is pointless except as an academic exercise. Any phone today can compute pi to 100 digits even with inefficient programming.

The most distant spacecraft from Earth is Voyager 1. It's about 12.5 billion miles away. NASA only needs 15 decimal digits of pi to have an error margin of 1.5 inches at that distance.

If we used 40 digits of pi, you could calculate the circumference of the entire known or visible universe. About 46 billion light-years. To an accuracy equal to the diameter of a hydrogen atom.

There is no need for 1 million digits of pi, or waste 100 days to calculate trillions of digits.

https://www.jpl.nasa.gov/edu/news/2016/3/16/how-many-decimals-of-pi-do-we-really-need/

I think I just printed pi on one of my school paper notebooks or something to 50 digits and used that as the cover. 3.1415xxxxxx ... heh.

What's the value of Pi?

Mathematician - 3.141592653589793238462643383279502884197169399375105820974944592307816406286 208998628034825342117067982148086513282306647093844609550582231725359408128481
Physicist - 3.14159265358979323846264338327950288419716
Engineer - about 3 something

Engineers use a minimum of 3 significant digits as a rule.

..and then you use a 3x factor of safety.    (at least in civil engineering)

[AlcoHoDL]

What's the value of Pi?

Mathematician - 3.14159265358979323846264338327950288419716939937510582097494459230781640628620 8998628034825342117067982148086513282306647093844609550582231725359408128481
Physicist - 3.14159265358979323846264338327950288419716
Engineer - about 3 something

My take on this:

Mathematician — Pi = C/d, where C is the circumference and d is the diameter of a circle (symbolic math, exact).
Physicist — Pi = 3.1415926535897932384626433832795028841972 (40 decimal places, near-zero numerical error).
Engineer — Pi = 3.1415927 (7 decimal places, sufficient for most practical applications).
Layman — Pi = 3.14 (2 decimal places, distant school memory).

As a mostly layman when it comes to maths (and sciences) funzies, could it be that one of the goals of continuing to attempt to calculate pi to further digits is to see if there might be a zero in there somewhere (I mean a last digit)? - and then we know how many actual digits pi has, rather than what seems to be an infinite number of digits without a last digit.  

We already know the answer to this: Pi has an infinite number of digits (i.e., there is no "last digit"). This is because Pi is an irrational number (it cannot be expressed as the ratio of two integers). Proof of this dates back to the 18th century (Lambert, 1761). The square root of 2 (1.414...) is another well-known irrational number.

[Gyrsur]

1 BTC = 1 BTC

or is it

1 BTC == 1 BTC

?

technically the first statement is not a boolean.

but the second statement is TRUE .  

..but if you comparejavascript:void(0); strings you have to use quotes

"1 BTC" == "1 BTC"

Put this way,

"1 BTC" = "1 BTC"

would just raise an error, right?

Well I guess a variable of "1 BTC" could recursively store itself and then lead to an "OutOfMemory" situation.

hmm, i doubt so. It's an (anonymous) string literal, which should be read-only (const).
But i got the joke and i like it
Are there "named variables" in this manner in any language you are aware of?
There are quite some freaky languages out there, like the famous INTERCAL

here you go.

Code:

fn main() {
    let a = "1 BTC";
    let b = "1 BTC";
    
    println!("1 BTC = 1 BTC -> {}", a = b);
    println!("1 BTC == 1 BTC -> {}", a == b);
}

1 BTC = 1 BTC -> 1 BTC
1 BTC == 1 BTC -> true

[nullius]

As a mostly layman when it comes to maths (and sciences) funzies, could it be that one of the goals of continuing to attempt to calculate pi to further digits is to see if there might be a zero in there somewhere (I mean a last digit)? - and then we know how many actual digits pi has, rather than what seems to be an infinite number of digits without a last digit.  

We already know the answer to this: Pi has an infinite number of digits (i.e., there is no "last digit"). This is because Pi is an irrational number (it cannot be expressed as the ratio of two integers). Proof of this dates back to the 18th century (Lambert, 1761). The square root of 2 (1.414...) is another well-known irrational number.

We all (except Jay) know that π is an irrational sonofabitch; but is he normal?  

* Wrathful nullius is the negative one, because ’e is powered to imaginary·π.

Yes, I just implied that 0 = -1.  Well, that’s not as bad as looking for the last digit of π.

[LoyceV]

1 BTC = 1 BTC

or is it

1 BTC == 1 BTC

?

technically the first statement is not a boolean.

but the second statement is TRUE .  

..but if you compare strings you have to use quotes

"1 BTC" == "1 BTC"

Put this way,

"1 BTC" = "1 BTC"

would just raise an error, right?

Well I guess a variable of "1 BTC" could recursively store itself and then lead to an "OutOfMemory" situation.

Can't we just introduce something like "in 2015 Bitcoin" as deflation adjustment, just like dollars have a inflation adjusted way of saying "in 1980 dollars"?

So:
$1 in 1980 is equivalent in purchasing power to about $3.19 today becomes: 1BTC on January 1st 2012 is equivalent in purchasing power to about 0.00008976BTC now.

[Sayeds56]

Need to finish this week over 70k or I'll probably have to give up my silly dream of home ownership. It's annoying because I have to move out of my apartment either way at the end of May and would rather not move twice but I guess it's not in the cards.

No worries! BTC will go beyond 70K and you will retain your apartment.



https://youtu.be/Hgb6vpD-EJw

[Biodom]

The fact that Musk calls his CFO a master of coin (in a SEC filing, lol) is interesting.
When something under your control is just 7-8% of your assets, you are not called a master of that, but rather a bigger "domain".

[Biodom]

https://apnews.com/article/germany-suspends-astrazeneca-vaccine-blood-clotting-0ab2c4fe13370c96c873e896387eb92f

Darn it. That said, I also got a small bruise that looked like a bunch of dots (Pfizer), but ONLY in a 1cmX1cm area of the shot.
It could be nothingburger, or not, but some EU countries seem to be in a panic over it.
What other choices are out there? Sputnik and something from China plus some Pfizer?

[OutOfMemory]

As a mostly layman when it comes to maths (and sciences) funzies, could it be that one of the goals of continuing to attempt to calculate pi to further digits is to see if there might be a zero in there somewhere (I mean a last digit)? - and then we know how many actual digits pi has, rather than what seems to be an infinite number of digits without a last digit.  

We already know the answer to this: Pi has an infinite number of digits (i.e., there is no "last digit"). This is because Pi is an irrational number (it cannot be expressed as the ratio of two integers). Proof of this dates back to the 18th century (Lambert, 1761). The square root of 2 (1.414...) is another well-known irrational number.

We all (except Jay) know that π is an irrational sonofabitch; but is he normal?  

* Wrathful nullius is the negative one, because ’e is powered to imaginary·π.

Yes, I just implied that 0 = -1.  Well, that’s not as bad as looking for the last digit of π.

Pi, as a unique constant, by the definition of normality, imo can and can not be normal.
The Schrödinger's Cat of numbers. Although it's calculation is based on a geometric proximity model, so it's also virtual as can be 

[OutOfMemory]

The fact that Musk calls his CFO a master of coin (in a SEC filing, lol) is interesting.
When something under your control is just 7-8% of your assets, you are not called a master of that, but rather a bigger "domain".

yeah, but he's the first well known dude to get into bitcoin with his company.
And he seems to have a favor for a teen-ish lifestyle, so no big surprise as of his CFO's nickname.

[Hhampuz]

The fact that Musk calls his CFO a master of coin (in a SEC filing, lol) is interesting.
When something under your control is just 7-8% of your assets, you are not called a master of that, but rather a bigger "domain".

yeah, but he's the first well known dude to get into bitcoin with his company.
And he seems to have a favor for a teen-ish lifestyle, so no big surprise as of his CFO's nickname.

Pretty sure it's a game of thrones reference and not bitcorn, maybe a mashup though who knows..

[Parazyd]

https://apnews.com/article/germany-suspends-astrazeneca-vaccine-blood-clotting-0ab2c4fe13370c96c873e896387eb92f

Darn it. That said, I also got a small bruise that looked like a bunch of dots (Pfizer), but ONLY in a 1cmX1cm area of the shot.
It could be nothingburger, or not, but some EU countries seem to be in a panic over it.
What other choices are out there? Sputnik and something from China plus some Pfizer?

It's propaganda so they can push Johnson & Johnson

[OutOfMemory]

The fact that Musk calls his CFO a master of coin (in a SEC filing, lol) is interesting.
When something under your control is just 7-8% of your assets, you are not called a master of that, but rather a bigger "domain".

yeah, but he's the first well known dude to get into bitcoin with his company.
And he seems to have a favor for a teen-ish lifestyle, so no big surprise as of his CFO's nickname.

Pretty sure it's a game of thrones reference and not bitcorn, maybe a mashup though who knows..

Who knows. I wouldn't be surprised, if so.
Didn't watch GoT yet.

[Hhampuz]

Who knows. I wouldn't be surprised, if so.
Didn't watch GoT yet.

If you do, skip the last two seasons and read the books/wait for the finishing books.