If there is one prayer that you should pray/sing every day and every hour, it is the LORD's prayer (Our FATHER in Heaven prayer)
It is the most powerful prayer. A pure heart, a clean mind, and a clear conscience is necessary for it.
- Samuel Dominic Chukwuemeka

For in GOD we live, and move, and have our being. - Acts 17:28

The Joy of a Teacher is the Success of his Students. - Samuel Dominic Chukwuemeka

# Calculators for Matrices I greet you this day,
You are encouraged to solve the questions before checking your solution with the calculators.
I wrote the codes for the calculators using JavaScript, a client-side scripting language. Please use the latest Internet browsers. The calculators should work.
Comments, ideas, areas of improvement, questions, and constructive criticisms are welcome. You may contact me.
If you are my student, please do not contact me here. Contact me via the school's system.
Thank you for visiting.

Samuel Dominic Chukwuemeka (Samdom For Peace) B.Eng., A.A.T, M.Ed., M.S

$\boldsymbol{2 * 2}$ Matrix

Only integers and decimals are allowed.
Fractions are not allowed.

$\boldsymbol{3 * 3}$ Matrix

Only integers and decimals are allowed.
Fractions are not allowed.

The determinant of the $\boldsymbol{2 * 2}$ matrix is

The determinant of the $\boldsymbol{3 * 3}$ matrix is

The minor of the $\boldsymbol{2 * 2}$ matrix is

The minor of the $\boldsymbol{3 * 3}$ matrix is

The cofactor of the $\boldsymbol{2 * 2}$ matrix is

The cofactor of the $\boldsymbol{3 * 3}$ matrix is

The adjoint of the $\boldsymbol{2 * 2}$ matrix is

The adjoint of the $\boldsymbol{3 * 3}$ matrix is

The inverse of the $\boldsymbol{2 * 2}$ matrix is

The inverse of the $\boldsymbol{3 * 3}$ matrix is

### Decimal to Fraction

• $=$