matlab 抽样函数

MATLAB中的抽样函数是stem函数。stem函数用于绘制离散时间信号的图形。它显示了离散时间信号在时间轴上的取样点，并通过在每个取样点上绘制垂直线段来表示信号的幅值。在给定的例子中，stem函数被用来绘制了离散时间信号的图形。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
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