Is there a Change in Conforming matrix operations?

I have noticed that 16b accepts A (n x p) - B (1 x p) as an operation and subtracts B from each of the n-rows of A 16a flags this as an error saying that matrix dimensions must agree.
Is this an intentional change?

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Asked:

on 30 Sep 2016

Commented:

on 30 Sep 2016

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