I think that was not his question. Hi didn’t ask about product integral of f(x), but “product integral of x”.
EDIT: And that for “small x”. At least I understood his question so.
No, he’s right. I didn’t think to clarify that my infinitely small factors are infinitesimally larger than 1, not 0. See the Type II product integral formula on Wikipedia that uses 1 + f(x).dx.
I think that was not his question. Hi didn’t ask about product integral of f(x), but “product integral of x”.
EDIT: And that for “small x”. At least I understood his question so.
No, he’s right. I didn’t think to clarify that my infinitely small factors are infinitesimally larger than 1, not 0. See the Type II product integral formula on Wikipedia that uses 1 + f(x).dx.