Calc, short for calculus, is a branch of mathematics that studies continuous change. It provides tools for understanding rates of change and the accumulation of quantities, making it essential in fields like physics, engineering, and economics. Concepts such as limits, derivatives, and integrals are fundamental to calculus, allowing for the analysis of dynamic systems. The two main branches of calculus are differential calculus, which focuses on the concept of the derivative, and integral calculus, which deals with the accumulation of quantities. Together, they form a powerful framework for solving complex problems in various scientific disciplines, enhancing our understanding of the world around us.