The new chatGPT-4o shows more power in math, however during reasoning the complex math problem it is asked to keep 3 digit for natural log, for example, e^3.282. It will give a slightly but still wrong number. This seems only occur as the last step after a long reasoning steps as far as I am tried. If I asked directly what is the value of the e^3.282 it will give an answer according to the python math, which is correct. But after more math inferring, it no longer calls python code and gives the wrong answer about the value of the natural log. I will do more tests to see what happened in there.

Clearly λ_3 = e^1.64 is about 5.1551695122, which is not 5.158!