A mathematical instrument is a tool used to perform mathematical tasks, such as measuring, drawing, or calculating. Common examples include rulers, compasses, protractors, and calculators. These instruments help students and professionals accurately represent and solve mathematical problems. Mathematical instruments have been used for centuries, evolving from simple tools to advanced technology. For instance, the abacus was one of the earliest calculating devices, while modern graphing calculators can perform complex functions and graph equations. These tools enhance understanding and efficiency in mathematics, making it easier to visualize and solve problems.