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Hello.

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Welcome back.

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The term broadcast and describes how a programming language creates a race with different shapes during

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arithmetic operations.

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Generally the smaller array is broadcast across the larger array so that they have compatible shapes.

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That's one example.

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Let's say we have this two by three matrix and we add this other one by three matrix.

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The result is a two by three matrix like this.

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We essentially are to draw content of the smaller matrix onto each more of the larger matrix.

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Let's say we have this two by three matrix again and this time we add this one by three matrix.

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The result to produce is a two by three matrix.

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This time we take the column content of the smaller matrix and added today and add it to each column

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of the larger matrix.

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If we have a matrix or a vector and we add its color value the value is simply added to each member

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of the matrix.

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This works for all the basic arithmetic operations mean in addition subtraction division and multiplication.

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So that's how both cost and works.

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If you have any questions just let me know and I'll see you later.