Question

tell me what is a matrix

Answer 1

matrix of a cell in Biology is the can be said as the cytoplasm of the cell

Answer 2

A matrix is a collection of numbers arranged into a fixed number of rows and columns. Usually the numbers are real numbers. In general, matrices can contain complex numbers but we won't see those here. Here is an example of a matrix with three rows and three columns: The top row is row 1.