There will be math... 0

[valiantman]

1 hour ago, kav said:

This formula needs a logarithmic function to account for the extremes.

Interesting.  I was considering square roots, which aren't necessarily "simple math" (like "do it in your head"), but they are easier than logarithms. 

Edited September 4, 2018 by valiantman

[kav]

5 minutes ago, valiantman said:

Interesting.  I was considering square roots, which aren't necessarily "simple math" (like "do it in your head"), but they are easier than logarithms. 

This would be a snap for calculus.

[bc]

Wouldn't exponential be more applicable than logarithmic? 

[valiantman]

3 minutes ago, kav said:

9 minutes ago, valiantman said:

Interesting.  I was considering square roots, which aren't necessarily "simple math" (like "do it in your head"), but they are easier than logarithms. 

This would be a snap for calculus.

Yep, but we'd lose the audience.  Most people don't realize E=MCsquared is not correct.  It has been simplified for us common folk to be able to repeat it.

It's actually m = sqrt(E² / c⁴ - p² / c² )

...but we don't get anywhere trying to spread the word on that one.

[valiantman]

3 minutes ago, bc said:

Wouldn't exponential be more applicable than logarithmic? 

Exponential would be helpful for the full range of grades from 0.5 to 10, but logarithmic would be helpful to reduce the insanity caused by highest grades vs. next-highest grades, where the CGC census is basically telling us to multiply prices by 100 for a change from 9.8 to 9.9. 

[Mr.Mcknowitall]

GxR_ is missing

R = Rarity

R5 = 1-5 COPIES

R4 = 6-10 COPIES

R6 = 11-15 COPIES.

Etc.

[kav]

3 minutes ago, valiantman said:

Yep, but we'd lose the audience.  Most people don't realize E=MCsquared is not correct.  It has been simplified for us common folk to be able to repeat it.

It's actually m = sqrt(E² / c⁴ - p² / c² )

...but we don't get anywhere trying to spread the word on that one.

 

[Mr.Mcknowitall]

GxR_ is missing

R = Rarity

R5 = 1-5 COPIES

R4 = 6-10 COPIES

R3= 11-15 COPIES.

Etc.

Edited September 4, 2018 by Mr.Mcknowitall
R6 should be R3

[RockMyAmadeus]

1 hour ago, valiantman said:

1 hour ago, Ditch Fahrenheit said:

Yes. 

This is known as Ratio Analysis, and has many applications.

It might be easier to see it as:

V = P(T/G)(C/O)

In other words, Value equals the product of the Price, the Grade Ratio, and the Census Ratio.

V = Price(Grade Ratio)(Census Ratio)

Using your example:

V = $500(8/9)(40/80) = $222.22

 

And yes, as you mentioned, it has its limitations.

Nice!  I usually find out after I come up with something from scratch that it already has a name. 

In grad school, I created a formula for data set sampling that I later found out was already called the Lincoln index.

One of these days, someone will say... "Hey!  That's new!" ... but not today. 

You forgot the tangent of y in the intersection of the z quadrant.

[valiantman]

2 minutes ago, RockMyAmadeus said:

1 hour ago, valiantman said:

1 hour ago, Ditch Fahrenheit said:

Yes. 

This is known as Ratio Analysis, and has many applications.

It might be easier to see it as:

V = P(T/G)(C/O)

In other words, Value equals the product of the Price, the Grade Ratio, and the Census Ratio.

V = Price(Grade Ratio)(Census Ratio)

Using your example:

V = $500(8/9)(40/80) = $222.22

 

And yes, as you mentioned, it has its limitations.

Nice!  I usually find out after I come up with something from scratch that it already has a name. 

In grad school, I created a formula for data set sampling that I later found out was already called the Lincoln index.

One of these days, someone will say... "Hey!  That's new!" ... but not today. 

You forgot the tangent of y in the intersection of the z quadrant.

I specifically avoided using "x" so that I couldn't be faulted for missing y and z. 

[jcjames]

[valiantman]

9 minutes ago, Mr.Mcknowitall said:

GxR_ is missing

R = Rarity

R5 = 1-5 COPIES

R4 = 6-10 COPIES

R6 = 11-15 COPIES.

Etc.

Why is R4 between R5 and R6? Is this like "because 7 ate 9"? 

EDIT: I see you corrected, so I'll end my teasing here... on this line.  

Not teasing you here... on this line.

Edited September 4, 2018 by valiantman

[valiantman]

Just now, jcjames said:

OK, I'll admit I am trying to make the math in this discussion simple... but not Julia Roberts simple. 

[Mr.Mcknowitall]

1 minute ago, jcjames said:

Blonds.......

[Mr.Mcknowitall]

2 minutes ago, valiantman said:

Why is R4 between R5 and R6? Is this like "because 7 ate 9"? 

See Edit

[Mr.Mcknowitall]

3 minutes ago, valiantman said:

Why is R4 between R5 and R6? Is this like "because 7 ate 9"? 

Are you by any chance Blond?

[porcupine48]

Are the mathists coming?Are they here already?

Beware the deadly pocket protector.

[valiantman]

Just now, porcupine48 said:

Are the mathists coming?Are they here already?

Beware the deadly pocket protector.

There have been polymaths among you the whole time.  You just didn't recognize us, ummm.... them. 

[valiantman]

4 minutes ago, Mr.Mcknowitall said:

Are you by any chance Blond?

Just admit you screwed up and you're mad I quoted you before your edit.  It's not like you're claiming to be Mr. Knowitall... oh, I see the problem. 

[Get Marwood & I]