matlab 三维画图

 t=[0:0.1:1] a=sin(t) b=cos(t) c=2*t [A B]=meshgrid(a,b) A =          0    0.0998    0.1987    0.2955    0.3894    0.4794    0.5646    0.6442    0.7174    0.7833    0.8415          0    0.0998    0.19

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