Was Pythagoras Chinese-Revisiting an old debate

 After reading this article, I was surprised that 

            Due to the geographical isolation of China in ancient times, the accepted history of mathematics             in the western world largely ignores their contributions. By examining the history of Chinese                mathematics, one can see they had an understanding of mathematics similar to that of the                        western world, and Greeks in particular. In cases such as the calculation of π and the proof of                the right - angle theory, both Chinese and Greeks made astounding discoveries. The most                        prominent Greek mathematicians, such as Pythagoras and Archimedes are well known, though                Chinese mathematicians with equal genius and comparable contributions to mathematics such as             Lui Hui and Zu Chongzhi are pushed to the margins of fame. 

It means that Chinese and Greek have the same contribution in developing the mathematics, but Chinese mathematics was ignored. 

There are differences between Euclid's Elements and Jiu Zhang suahshu: 

            The Jiu Zhang suahshu gave the reader the tools to solve problems and did not concern itself                 with proving the authenticity of the tools.The Elements was nearly the opposite, as its chief                     concern was giving rigorous proof of ideas presented.