Q1/ Q1/ 1- Open a new m-file and give it a name(l pl.m) and save it in your directory. 2-Take T, = 0.07 and define the time vector t from -13 to 13. 3-Express the unit step function ,which is denoted in MATLAB as "stepfun(t.to)". 4-Write a code to invert the function u(t)around the y-axis to get u(-t).Then a code to find the shifted versions u(t+to).Take to= 5.

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