What's the difference using .* and *, or ./ and /?

2015 6 11
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Hi when do I know to use the . in dividing or multiplying? Originally, I had thought to use .* or ./ if we are doing element-by-element product/division of two matrices, and use * for matrix multiplication/division. If it's related to the array/vector/matrix stuff, I'm a bit fuzzy on that too, so any explanations would be great!!
Thanks!!

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per isakson
per isakson 2015-6-11
编辑：per isakson 2015-6-11

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Element-by-element operations. These are obtained using .* , .^, ./, or .\. See the Arithmetic Operators page. See

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