Question: How to perform cumulative summation of an integral?

Dear Experts,

I am new user. I need your help!

I have numerical values of omega (w) and a2F(w) (500 rows). I need to do cumulative summation to get lambda(w) using   lambd=2 int (a2F(w)/w  dw). Please help me how can I do it?

Best Wishes,

Enamul Haque

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