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Old 05-24-2013, 08:33 AM   #11
chimchim
 
Join Date: Jan 2005
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Default Re: Power Stone Price

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Originally Posted by Lord Morpheus View Post
Thanks I was hopping someone will get this in the discussion. I really don't understand this part of the math. (54/53)^50
What is the calculation here. Can you make this step by step?
Thanks again (my math abilities are a disgrace)
You take 54 and divide it 53 getting1.01886792
Then multiplying the above answer by it self 50 times getting an answer of 2.54621114
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Old 05-24-2013, 09:11 AM   #12
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Default Re: Power Stone Price

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Originally Posted by Anthony View Post
It's irrelevant to powerstones; you only need a skill 16 master.
Quick and Dirty enchantment has a cap of 15.
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Old 05-24-2013, 10:17 AM   #13
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Default Re: Power Stone Price

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Quick and Dirty enchantment has a cap of 15.
No, enchantment merely fails on a 16+; you can still have skill 20. In any case, the reason you need a skill of 16 is because of the -1 skill per assistant.
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Old 05-24-2013, 01:07 PM   #14
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Default Re: Power Stone Price

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Originally Posted by chimchim View Post
You take 54 and divide it 53 getting1.01886792
Then multiplying the above answer by it self 50 times getting an answer of 2.54621114
Thanks, now I get it!
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Old 05-24-2013, 01:31 PM   #15
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Default Re: Power Stone Price

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Originally Posted by Lord Morpheus View Post
Thanks, now I get it!
Note that, because failed results don't actually add to the enchantment on the stone, the correct ratio is 210/206, not 216/212, meaning the actual multiplier for a 50 point stone is 2.6157 and the final stone cost is $71,625. Except that you also want to know about quirks, which we can approximate as a binomial distribution where n is the size and p is 6/212 (it's not actually a true binomial); for a 50 point stone, of the surviving stones, roughly 23% will be unquirked, the rest will mostly have 1-3 quirks.
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Old 05-24-2013, 04:15 PM   #16
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Default Re: Power Stone Price

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Note that, because failed results don't actually add to the enchantment on the stone, the correct ratio is 210/206, not 216/212, meaning the actual multiplier for a 50 point stone is 2.6157 and the final stone cost is $71,625. Except that you also want to know about quirks, which we can approximate as a binomial distribution where n is the size and p is 6/212 (it's not actually a true binomial); for a 50 point stone, of the surviving stones, roughly 23% will be unquirked, the rest will mostly have 1-3 quirks.
AAAAAAAAAAAAHHHHHHHHHHHHHHHHHHH!!!!
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Old 05-24-2013, 10:46 PM   #17
sir_pudding
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Default Re: Power Stone Price

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Originally Posted by Anthony View Post
Note that, because failed results don't actually add to the enchantment on the stone, the correct ratio is 210/206, not 216/212, meaning the actual multiplier for a 50 point stone is 2.6157 and the final stone cost is $71,625. Except that you also want to know about quirks, which we can approximate as a binomial distribution where n is the size and p is 6/212 (it's not actually a true binomial); for a 50 point stone, of the surviving stones, roughly 23% will be unquirked, the rest will mostly have 1-3 quirks.
Or if you have trouble just with exponential notation, you can ignore this complexity and just use the formula in Magic. It's close enough.
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Old 05-24-2013, 10:53 PM   #18
roguebfl
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Default Re: Power Stone Price

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Originally Posted by Flyndaran View Post
But the price still includes basic craftsman's prices for essentially medical doctor level skill. You aren't going to hire a physician for a craft fair worker's salary.
Part of the reason I made, GURPS Enchantment Calculator is to make it easier to around that assumption.
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Old 05-24-2013, 11:43 PM   #19
Flyndaran
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Default Re: Power Stone Price

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Part of the reason I made, GURPS Enchantment Calculator is to make it easier to around that assumption.
Nice. The only criticism I have is that I can't adjust the slow enchant to something other than 1/1 day. Unless I'm missing something. But very nice.
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Old 05-25-2013, 07:49 PM   #20
hal
 
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Default Re: Power Stone Price

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It's irrelevant to powerstones; you only need a skill 16 master.
Technically, a Skill 12 Enchanter can make a powerstone of "power" 15 or any value above that. Doubling the time required to enchant an item, will grant a +4 effective skill/power level for an enchantment. Triple time to enchant will grant a +5 bonus to skill/power for enchantment purposes - ect.
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