(Please do this question in matlab and copy and paste the input and output) Writ

Question

(Please do this question in matlab and copy and paste the input and output)

Write a function array_product to compute the product of the elements of an array v using a for loop. The rst line of the function, and explanatory comments have been provided.
function P = array_product(v)
%array_product Product of elements in an array
% P = array_product(v) returns v(1) * v(2) * ... * v(n)
% where n is length(v).

Test your function for several arrays that you create, and conrm it recovers the same answer as the MATLAB built-in function prod.

Hint: What value should you initialise the variable P to in your function?

Explanation / Answer

CODE

function P = array_product(v)
%array_product Product of elements in an array
% P = array_product(v) returns v(1) * v(2) * ... * v(n)
% where n is length(v).

P = 1;
for i=1:length(v)
    P = P*v(i);
end

OUTPUT

For array: v=[1 2 3 4 5]

>> array_product(v)

ans =

120

>> prod(v)

ans =

120

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