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Question: Compute Integral in Maple numerically ?

Question:Compute Integral in Maple numerically ?

Mariusz Iwaniuk 1526 Maple 2023
integration precision numeric
February 17 2024
3

I what compute integral numerically with Precision 14 Digits. I try with:

evalf[2](Int(abs(sin(x^4))/(sqrt(x) + x^2), x = 0 .. infinity, method = _d01amc, methodoptions = [maxintervals = 50000]));# Works with 2 digits only.

I tried all the options and I failed to calculate with more precision.

with change variable: x = -ln(t) I got:

evalf[2](Int((ln(t)^2 - sqrt(-ln(t)))*abs(sin(ln(t)^4))/(ln(t)*(ln(t)^3 + 1)*t), t = 0 .. 1, method = _d01akc, methodoptions = [maxintervals = 500]));#Gives an error!!!

Thanks.
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