ans6_8.m

MATLABR2006a基础教程

tic
x = -10:0.5:10;
y = zeros(1,length(x));
x0 = find(x>0,1,'first');
y(1:x0-1) = -x(1:x0-1).^3 + 5;
y(x0:end) = x(x0:end).^3 + 5;
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