Assume a matrix variable mat, as in the following example:

robaa

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2022-11-29

139

Very Hard

mat =

4 2 4 3 2

1 3 1 0 5

2 4 4 0 2

The following for loop

[r, c] = size(mat);

for i = 1:r

sumprint(mat(i,:))

end

prints this result:

The sum is now 15

The sum is now 25

The sum is now 37

Write the function sumprint.

Matlab, textbook solutions, Matlab textbook-solutions,

robaa

2022-11-29

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sumprint.m

function sumprint(vec)

% Prints the result of a persistent sum

% of the values in vectors that are passed

% Format of call: sumprint(vector)

% Returns the persistent sum of all input vectors

persistent mysum

if isempty(mysum)

mysum = 0;

end

mysum = mysum + sum(vec);

fprintf('The sum is now %d\n', mysum)

end

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