Wiskundig raadsel Possibly 1784 - 1789

"Wiskundig Raadsel" (Mathematical Riddle) is a sketch by Dutch artist Jan Brandes, dated between 1784 and 1789. The drawing is a study in geometry, featuring a geometric figure with calculations and notes written in Brandes’ hand. The artwork’s focus on mathematical principles exemplifies Brandes’ interest in scientific inquiry and the use of visual art to illustrate complex concepts. The sketch’s detailed annotations suggest the artist's meticulous approach to problem-solving, and provide insight into the process of mathematical exploration. This sketch serves as a glimpse into the intersection of mathematics and art in the 18th century.