Describe 'finite element analysis' (FEA).

Finite Element Analysis (FEA) is a numerical method used primarily for solving complex structural analysis problems by dividing a large structure or system into smaller, more manageable pieces known as finite elements. This process allows engineers to model and analyze physical phenomena such as stress, strain, heat transfer, and fluid dynamics with high precision.

By breaking down the structure into smaller elements, FEA enables the application of mathematical equations that govern physical behavior to each element individually. These equations can then be solved collectively to understand the overall behavior of the entire structure. This method is particularly useful in engineering fields where analyzing complex shapes or load conditions is necessary, as it facilitates detailed predictions of how structures will respond to various forces.

While the other options mention concepts that may relate to computational tasks, graphic design, or coding, they do not accurately capture the essence of what FEA is. FEA's core function lies in its ability to perform detailed structural analysis through numerical methods, making it an indispensable tool in engineering design and analysis.