I want to know the answer to the following question:
What advanced mathematical methods did the Tang dynasty have?
All the background I'm provided with is that "By the 1st century BC, negative numbers and decimal fractions were in use and The Nine Chapters on the Mathematical Art included methods for extracting higher order roots by Horner's method and solving linear equations and by Pythagoras' theorem.". Is that enough to answer the question?
Answer: no