








Artwork Library – Kim Hong Do
죽하맹호도 A striking Korean ink painting from the late 18th to early 19th century depicting a fierce tiger turning its…

Artwork Library – Fan Ho
Afternoon Chat, Hong Kong, 1959 A black and white photograph capturing a dramatic backlight silhouette, with ethereal light beams piercing…

php 입문 (5) – PHP Math
PHP pi() Function PHP min() and max() Functions PHP abs() Function PHP round() Function Random Numbers