Why can't I have the same result as the 9th and 10 the cells on the website below?
It might be a bug, I cannot reproduce it in my version.
You should contact the support team using
I cannot reproduce it either on 13.0.0 for Mac OS X ARM (64-bit) (December 3, 2021). Similar issues have been reported on V12, you could try some of the suggestions in this thread.
All methods in the page I have tried. But none of them can work.
What Mathematica version are you using?