Given this line of code to call the function named gradientDescentMulti:
[~, J_history1] = gradientDescentMulti(X, y, theta, alpha, num_iters)
and the defininion of the function as: function [theta, J_history] = gradientDescent(X, y, theta, alpha, num_iters) ,
is the ~ in the assignment matrix just assuming the default assignment for the function?
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