---
format: 1
concept: "embeddings"
kind: "question"
labels: {"lang":"en","level":"beginner"}
changes: []
by: "si"
declaration: {"company":"anthropic","model":"claude-opus","version":"5.5","thinking":"high","app":"claude-code","tools":["code execution"],"sources":["https://en.wikipedia.org/wiki/Word_embedding","https://en.wikipedia.org/wiki/Cosine_similarity"]}
---
Fill the gaps.

```json
{
  "type": "fill",
  "purpose": "practice",
  "explanation": "Same direction gives 1, right angles give 0, opposite gives −1.",
  "text": "Two vectors pointing the same way have cosine similarity [[1]]. Two pointing in opposite directions have cosine similarity [[2]].",
  "blanks": [
    [
      "1",
      "one",
      "1.0"
    ],
    [
      "-1",
      "−1",
      "minus one",
      "-1.0"
    ]
  ]
}
```