Trigonometric tables are charts that display the values of trigonometric functions such as sine, cosine, and tangent for various angles. These tables help users quickly find the values needed for calculations in fields like mathematics, physics, and engineering. They typically include angles in degrees or radians and their corresponding function values. Before the advent of calculators and computers, trigonometric tables were essential tools for students and professionals. They simplified complex calculations, allowing for easier problem-solving in areas like geometry and navigation. Today, while technology has largely replaced them, understanding these tables remains important for foundational knowledge in trigonometry.