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Question
函数或变量 'poly2str' 无法识别，如何导入poly2str?
x=-2*pi:pi/2:2*pi; y=[1,0,-1,0,1,0,-1,0,1]; p2=polyfit(x,y,2); p3=polyfit(x,y,3); p4=polyfit(x,y,4); p6=polyfit(x,y,6); di...
2 years ago | 1 answer | 0
