how to remove a singularity in an integr# Computation - 科学计算
m*n
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Integrate[f[r1] Integrate[g[r2]/Sqrt[r1+r2],{r2,0,Infinity}],{r1, 0,Infinity}]
f[0], g[0]!=0
In this integration, how can I treat the sigurity induced by 1/Sqrt[r1+r2]?
Also, how to calculate r1*r2/Sqrt[r1^2+r2^2] when both r1 and r2 approach to
0?
f[0], g[0]!=0
In this integration, how can I treat the sigurity induced by 1/Sqrt[r1+r2]?
Also, how to calculate r1*r2/Sqrt[r1^2+r2^2] when both r1 and r2 approach to
0?