Question: Using Matlab 2.7. (a) Suppose A is a matrix whose entries are all positive numbers. Write one line that will multiply each column of A

Using Matlab

Using Matlab 2.7. (a) Suppose A is a matrix whose entries are

2.7. (a) Suppose A is a matrix whose entries are all positive numbers. Write one line that will multiply each column of A by a scalar so that, in the resulting matrix, every column sums to 1. Try this more difficult variation: Suppose that A may have zero en- tries, and leave a column of A that sums to zero unchanged. (b)

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