NWChemEx / NWChemEx/TensorWrapper

accumulate

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good first issue
Dominant language
C++
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Description

Issue Description

Right now we support tensor operations like C("i,j") = A("i,j") + B("i,j");, but not operations like A("i,j") += B("i,j");. This issue is for adding support for operator+= and operator-=.

Contributor guide

Open the contributing guide

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start by locating the tensor expression and assignment entry points that handle C("i,j") = A("i,j") + B("i,j");. Trace how assignment currently combines tensor operands, then determine the relevant tests or add focused coverage for A("i,j") += B("i,j") and A("i,j") -= B("i,j"). Done means both compound operations are supported consistently with the existing operation.

Written by the indexing model from the issue text.

Assessment

Tech stack
cpp
Domain
data
Issue type
Feature
Difficulty
3/5
Estimated time
1-2 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
45/100

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