>> y=[zeros(1,5),10*(1-0.9.^(1:9)),10*(1-0.9^10)*0.9.^(0:40)]; stem(-5:49,y);title('y(n)')
https://www.powershow.com/view1/2074f6-ZDc1Z/y_zeros_1_5_10_1-0_9_19_10_1-0_9_10_0_9_040_stem_-549_y_title_y_n_powerpoint_ppt_presentation
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