English: The Suzhou numerals for five and nine are their horizontal forms of the rod numerals in cursive. (cf. Qian, Baozong (1932). Zhongguo Suanxueshi, Shang Juan (A History of Chinese Mathematics, Volume 1). Peiping: Academia Sinica. p. 113.) The Suzhou numerals in the image are traced from selected ones on old documents, not taken from any computer fonts, since the Suzhou numerals in these fonts are far from satisfactory, and some even have errors owing to ignorance of designers. (This image is in blue to support the Hong Kong police.)
to share – to copy, distribute and transmit the work
to remix – to adapt the work
Under the following conditions:
attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
share alike – If you remix, transform, or build upon the material, you must distribute your contributions under the same or compatible license as the original.