Rpenner,
Thanks for your response. Hua Di makes two specific claims. One he says that correct integration leads to 75" per century while removal of approximation leads to 100" per century....On the other hand Einstein proposes 43" only. You have not pointed any problem in Hua Di paper..
Then Hua Di is no mathematician.
In §1, Hua Di calls the formula $$24 \pi^3 \frac{a^2}{T^2 c^2 (1-e^2)}$$ a needless resort when $$\frac{3}{2} \pi r_s \left( \frac{1}{r_{-}} + \frac{1}{r_{+}} \right)$$ gives the same result for Mercury of $$5 \times 10^{-7} \, \textrm{radians per orbit}$$ but he calculates to enough precision to reveal that the numerical results depend on the formula because the quantities aren't exactly known and have errors are introduced in different manner.
In §2, Hua Di resorts to misparsing the Einstein source paper and not calculating the original quantity. So he computes on the basis of a typo rather than according to physical theory. He then egregiously purports to misunderstand Einstein and abuses mathematics. In detail, minus the typo that Hua Di never corrects, Einstein's approximations all hold good as seen in post #37. Hua Di compounds error after error where Einstein's math speaks for itself even in light of the obvious typo. Even the issue of what the one in the formula corresponds with seems to elude Hua Di.
In §3, Hua Di demonstrates that no part of analysis lives in his heart. He uses the term "approximation" incorrectly and asks questions that are trivial to answer.
$$r_{+} = a (1 + e) , r_{-} = a (1 - e), r_s = \frac{2 GM}{c^2}, \frac{G(M+m)}{4 \pi^2} = \frac{a^3}{T^2} $$ means:
$$\frac{3}{2} \pi r_s \left( \frac{1}{r_{-}} + \frac{1}{r_{+}} \right) = \frac{3}{2} \pi \frac{2 GM}{c^2} \frac{4 \pi^2 a^3}{G(M+m) T^2} \left( \frac{1}{a ( 1 - e)} + \frac{1}{a (1 +e)} \right) = 12 \pi^3 \frac{M}{M+m} \frac{a^3}{T^2 c^2} \frac{2 a}{a^2 (1-e^2)} = \frac{M}{M+m} 24 \pi^3 \frac{a^2}{T^2 c^2 (1 - e^2)} \approx 24 \pi^3 \frac{a^2}{T^2 c^2 (1 - e^2)} $$
The approximation is good to 2 parts per 10 million which means it's physically indistinguishable from the result of the approximate integration, which itself is only good to about 2 parts per 10 million.
So basically, Hua Di doesn't understand any part of physics or math in his paper, wastes times on minutia and never bothers to learn the metrology, physics or correct way to approximate the elliptic integral. He doesn't even bother to read the 100-year-old correction to the paper noted in the sources. So Hua Di is weaving a falsehood and The God is willfully repeating it rather than learn physics. I don't think such dishonesty is allowed in any part of this forum.