(*Function definitions*) <span class="searchmatch">boxcar</span>[x_, {a_, b_}] := UnitStep[x - a] - UnitStep[x - b]; f[t_] := 0.7*<span class="searchmatch">boxcar</span>[t, {-1/4, 1/4}]; g[t_] := Piecewise[ {{0, t < 0}...
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