These 1 D integration utilities are NOT dissociative
Mathcad/Mathsoft offers [Adaptive, Romberg, Infinite, Singular]
Native Smath only Simpson.
At this point, we can improve Smath 1 D integration
1. Ordinary Simpson ... ODE integrators.
Both range from ~ exact, very good [acceptable] ... glorious freak.
2. FD [Finite Differences] not recommended Infinite/Singular.
3. ʃkernel(f,a,b,n) ... ∫Adaptive(f,a,b,ε) ... ∫simplex(f,a,b,s).
4. Don't forget maple companion !
Take ... Jean.

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