Define scalar produt of two vectors.

Explanation

### Step-by-Step Solution:

1. **Definition of Scalar Product**: The scalar product of two vectors, also known as the dot product, is a mathematical operation that takes two vectors and returns a single scalar quantity.

2. **Mathematical Representation**: If we have two vectors, **A** and **B**, the scalar product is denoted as **A · B**.

3. **Angle Between Vectors**: To compute the scalar product, we consider the angle (θ) between the two vectors. The vectors are typically represented with their tails joined at a common point.

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