Exact Differential Equation

Before you see this post,

see

Relationship between Integral and Differential

Total differential

Definition of exact differential equation

Solutions of exact differential equation

Matrix Operation

pic. 1

Let's think about possible conditions of matrix operation

by reading pic. 1.

Example

pic. 2

pic. 3

There are n x n matrices, A and B.

Every matrix has rows and columns like pic. 3.

Let's operate matrices.

pic. 4

We can operate like pic. 4.

Example

pic. 5

Examples of Matrix Operation