ELI5: Explain Like I'm 5

Numerical linear algebra

Numerical linear algebra is a type of math that helps to solve problems involving numbers and matrices. Matrices are simply rectangles of numbers arranged in rows and columns. In numerical linear algebra, we use equations and calculations to solve problems like finding the best way to fit a line through a set of data points or multiplying two matrices together. This type of math helps us understand the structure of data and find the best way to solve problems related to it.