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Dot

a.b.c or Dot[a, b, c] gives products of vectors and matrices.

a.b gives an explicit result when a and b are lists with appropriate dimensions. It contracts the last index in a with the first index in b.
• Various applications of Dot:

• Examples: {a, b}.{c, d} LongRightArrow  .
{{a, b}, {c, d}}.{x, y} LongRightArrow  .
• See also:
Cross.

Examples

Using InstantCalculators

Here are the InstantCalculators for the Dot function. Enter the parameters for your calculation and click Calculate to see the result.

Entering Commands Directly

You can paste a template for this command via the Text Input button on the Dot Function Controller.

This is the dot product of two vectors using the shorthand form for Dot.

This is the dot product of a  Cross  matrix and a vector.

The dot product of a  Cross  matrix and a  Cross  matrix is a  Cross  matrix.



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