MRChemSoft/vampyr

cannot access dot product between two vectors in new vampyr

Closed this issue · 3 comments

Gabrielgerez commented

The dot product for two vectors containing vp.FunctionTree cannot be accessed through the new style of vampyr.
I've tried these two methods

  1.  vp.dot( [vp.FunctionTree, vp.FunctionTree, vp.FunctionTree], [vp.FunctionTree, vp.FunctionTree, vp.FunctionTree])

  2.  product_tree = vp.FunctionTree(MRA)
 vp.dot(product_tree, [vp.FunctionTree, vp.FunctionTree, vp.FunctionTree], [vp.FunctionTree, vp.FunctionTree, vp.FunctionTree])
ilfreddy commented

is that the right function to call? I thought dot would give a scalar out of two MW functions. In other words, the integral of the product.

Gabrielgerez commented

is that the right function to call? I thought dot would give a scalar out of two MW functions. In other words, the integral of the product.

The classic dot product is the sum of the product between the elements of two vectors. Both definitions should be correct. As far as I understand.

stigrj commented

yes, both should be possible

double <- FunctionTree . FunctionTree
FunctionTree <- FunctionTreeVector . FunctionTreeVector

but the latter has dropped out of our interface...