Differential equation: F(y'',y',y,x)=0,(adsbygoogle = window.adsbygoogle || []).push({});

y=y(x).

Now, there is g=g(x) with F(g'',g',g,x)=δ, where δ is small. Then, can g(x) be taken as an approximate solution of F(y'',y',y,x)=0?

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# Approximate solution of differential equation

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