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Manufacturing multiple run rounding

First post
Author
Antoni Vale
Viziam
Amarr Empire
#1 - 2014-08-02 19:38:46 UTC
How is rounding handled for multiple runs?

Example..

1 run T2 BPC uses 15 Morphite
4 run T2 BPC uses 59 Morphite
7 run uses ?

eve-industry.org already conveniently tells us requirements, just trying to understand the process.
Qoi
Exert Force
#2 - 2014-08-02 19:55:12 UTC
Antoni Vale wrote:
How is rounding handled for multiple runs?

Example..

1 run T2 BPC uses 15 Morphite
4 run T2 BPC uses 59 Morphite
7 run uses ?

eve-industry.org already conveniently tells us requirements, just trying to understand the process.


The short answer is that eve-industry.org also tells you how the process work if you read http://eve-industry.org/export/IndustryFormulas.pdf

The long answer is that rounding is done until after the multiplication with the number of runs, instead of before. So for exampl for a ME -2% BPC you are looking at 15 * 0.98 = 14.70 Morphite. Keep in mind rounding in the industry code is always rounding up.

14.70 is rounded to 15 Morphite

14.70*4 = 58.80 is rounded up to 59 Morphite

14.7*7 = 102.90 is rounded up to 103 Morphite

http://eve-industry.org

Barton Breau
University of Caille
Gallente Federation
#3 - 2014-08-02 21:32:14 UTC
Just be careful when reprocessing, it also rounds, and sometimes down, there was a thread about a ship skin giving 1 normal ship for a skinned one, but in bulk it was 3 for 5 :) , if i understood it correctly.
Destitute Tehol Beddict
Binary Trading
#4 - 2014-08-03 20:35:27 UTC
The rounding in reprocessing was a *** to figure out...

But you both roundup, and rounddown in special cases. .. Shocked

Loot Buying service: https://forums.eveonline.com/default.aspx?g=posts&m=4529397#post4529397

Antoni Vale
Viziam
Amarr Empire
#5 - 2014-08-03 21:24:15 UTC
Qoi wrote:
Antoni Vale wrote:
How is rounding handled for multiple runs?

Example..

1 run T2 BPC uses 15 Morphite
4 run T2 BPC uses 59 Morphite
7 run uses ?

eve-industry.org already conveniently tells us requirements, just trying to understand the process.


The short answer is that eve-industry.org also tells you how the process work if you read http://eve-industry.org/export/IndustryFormulas.pdf

The long answer is that rounding is done until after the multiplication with the number of runs, instead of before. So for exampl for a ME -2% BPC you are looking at 15 * 0.98 = 14.70 Morphite. Keep in mind rounding in the industry code is always rounding up.

14.70 is rounded to 15 Morphite

14.70*4 = 58.80 is rounded up to 59 Morphite

14.7*7 = 102.90 is rounded up to 103 Morphite


So this is an advantage to T2 BPO owners right? You can create T2 BPCs with more runs than an invention T2 BPC and get a bigger multiple run discount on materials.
Steve Ronuken
Fuzzwork Enterprises
Vote Steve Ronuken for CSM
#6 - 2014-08-04 11:34:44 UTC
Antoni Vale wrote:
Qoi wrote:
Antoni Vale wrote:
How is rounding handled for multiple runs?

Example..

1 run T2 BPC uses 15 Morphite
4 run T2 BPC uses 59 Morphite
7 run uses ?

eve-industry.org already conveniently tells us requirements, just trying to understand the process.


The short answer is that eve-industry.org also tells you how the process work if you read http://eve-industry.org/export/IndustryFormulas.pdf

The long answer is that rounding is done until after the multiplication with the number of runs, instead of before. So for exampl for a ME -2% BPC you are looking at 15 * 0.98 = 14.70 Morphite. Keep in mind rounding in the industry code is always rounding up.

14.70 is rounded to 15 Morphite

14.70*4 = 58.80 is rounded up to 59 Morphite

14.7*7 = 102.90 is rounded up to 103 Morphite



So this is an advantage to T2 BPO owners right? You can create T2 BPCs with more runs than an invention T2 BPC and get a bigger multiple run discount on materials.



Yes, it's a benefit for T2 bpo owners. But it's tiny compared to the kicking T2 BPOs just got in comparison to invented BPCs Blink

Woo! CSM XI!

Fuzzwork Enterprises

Twitter: @fuzzysteve on Twitter

Li Quiao
Imperial Academy
Amarr Empire
#7 - 2014-08-04 15:15:29 UTC
However, there is a floor that each run will use a minimum of one of the item. I can confirm that my 300-run manufactures of starbase fuel use 300 robotics each, not the less than 270 units they would use calculated on the forumlas given above.
Steve Ronuken
Fuzzwork Enterprises
Vote Steve Ronuken for CSM
#8 - 2014-08-04 17:39:40 UTC
Li Quiao wrote:
However, there is a floor that each run will use a minimum of one of the item. I can confirm that my 300-run manufactures of starbase fuel use 300 robotics each, not the less than 270 units they would use calculated on the forumlas given above.



Actually, the formula in the PDF takes care of that.

required = max(runs,ceil(round(runs∗baseQuantity∗materialModifier,2))

the max(runs,(stuff)) clause makes sure that at least 1 thing per run is used.

Woo! CSM XI!

Fuzzwork Enterprises

Twitter: @fuzzysteve on Twitter