(x)=ln(x)/x+x/e^x是一个。 (x^2-1)*exp(-x)也可以。
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x=1:100:10000; y = log(x)./x + x./(2.718).^x; plot(x,y) |
x=1:10:200; y = 1+ (x.^2-1).*exp(-x); plot(x,y) |
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| x2 = 1:500:500000; y2 = 1+0.001.*log10(x2); plot(x2，y2） |
x2 = 1:500:500000; y2 = 1+0.005.*log10(x2).*log10(x2); plot(x2,y2) |
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x2 = 1:500:500000; y2 = 1+0.005.*log(x2).*log10(x2); plot(x2,y2) |
x2 = 1:500:500000; y2 = 1+0.005.*log(x2).*log(x2); plot(x2,y2) |
