Hex_lattice.mw

Thanks Kitonum, works well.

I have attempted to modify your cose to get an interweving a lattice of equi triangles, but can seem to align them: see sheet

Hex_lattice.mw

Thanks Kitonum, works well.

I have attempted to modify your cose to get an interweving a lattice of equi triangles, but can seem to align them: see sheet

thx Acer. works well

thx Acer. works well

thx Pagan, works well

thx Pagan, works well

thx Pagan, it works well.

I have another, related problem. this time it needs to stay looping while errors are generated, to find the one or two "real" answers. i hope the worksheet is self explanatary

subset_sum_proble.mw

thx Pagan, it works well.

I have another, related problem. this time it needs to stay looping while errors are generated, to find the one or two "real" answers. i hope the worksheet is self explanatary

subset_sum_proble.mw

thanks Robert for your efforts!

thanks Robert for your efforts!

thanks for trying.

revisting the first problem, say instead of one roll of 5600mm width to cut from, you had 2 rolls (say): 1 roll of fixed width 4300mm and 1 roll of (say) 3000mm to cut the above quantities and minimize waste. How to modify your code to accomodate this? or am i stretching the friendship?

thanks for trying.

revisting the first problem, say instead of one roll of 5600mm width to cut from, you had 2 rolls (say): 1 roll of fixed width 4300mm and 1 roll of (say) 3000mm to cut the above quantities and minimize waste. How to modify your code to accomodate this? or am i stretching the friendship?

The next challenge is to find a minimum-pattern-count solution amongst the minimum-waste solutions.

cutstock.mw finds a minimum waste of 0.401%, but there is 14 patterns outputed. according to the wiki article, "19 different such solutions exist, each with 10 patterns and a waste of 0.401%". 

The next challenge is to find a minimum-pattern-count solution amongst the minimum-waste solutions.

cutstock.mw finds a minimum waste of 0.401%, but there is 14 patterns outputed. according to the wiki article, "19 different such solutions exist, each with 10 patterns and a waste of 0.401%". 

thx Robert, thats fantastic!

I'll go away and try to digest it. reducing variables is the key.