LESSON 2.3 OCTAVE TUTORIAL (MATLAB): MATRIX - Solving Linear equations using Matrix

Octave / MatLab Lesson 2.3 Part 1: Matrices. Create a 2X3 Matrices (Row x Column). Colon can be used to divide Row matrices A = [5,6,7; 9,6,3] Or a = [5:7; 9:-3:3] Create a 3X3 Matrices (Row x Column) A = [5,6,7; 9,6,3; 2,4,6] Or a = [5:7; 9:-3:3; 2:2:6] To create an Identity matrix 3x3 eye(3) To create an identity matric 2x2 eye(2) To create a 2x2 matrix with random elements rand(2) To create a 3x3 matrix with random elements rand(3) Part 2: The determinant of an identity matrix is, therefore, 1. Determinants are useful because they tell us whether or not a matrix can be inverted, in other words, if the determinant of a matrix is zero, the matrix cannot be inverted c=[2 1 8;7 3 9;5 6 9] issquare(c) inv(c) c*inv(c) %An identity matrix is obtained when the inverse of a matrix is multiplied by itself c.*inv(c) det(c) det(c*inv(c)) %The determinant of an identity matrix is, therefore, 1 Part 3: Example Finding Roots 2x -4y -2z = 12 -------D -2x -2y +2z=-2----------E 4x + 6y -2z=16----------F A=[2 -4 -2;-2 -2 2;4 6 -2] B=[12;-2;16] solve for x,y,z Ax=B X = inv(A)*B X = A\B ------------------------------------------------------------------------------------------------------------------------------------- -------------------------------------------------------------------------------------------------- Access Ready Information for you: Octave, Coco Simulation, DWSIM Simulation Octave: 1. Download Octave -    • How To Download and Install Octave GN...   2. Lesson 1.1 - Octave Tutorial / Matlab Introduction to Octave    • Lesson 1.1 - Octave Tutorial / Matlab...   3. Lesson 1.2 - OCTAVE TUTORIAL (MATLAB): HELP FUNCTION, DISP FUNCTION, INPUT FUNCTION. link:    • LESSON 1.2 – OCTAVE TUTORIAL (MATLAB)...   4. LESSON 2.1 – OCTAVE TUTORIAL (MATLAB): COMPLEX NUMBERS, TRIGONOMETRY, SQUARE ROOT    • LESSON 2.1 –OCTAVE TUTORIAL (MATLAB):...   5. LESSON 2.2 OCTAVE TUTORIAL (MATLAB): ROW VECTORS, ARRAYS, ADDITION OF VECTORS MATRIX    • LESSON 2.2 OCTAVE TUTORIAL (MATLAB): ...   6. LESSON 2.3 OCTAVE TUTORIAL (MATLAB): MATRIX - Solving Linear equations using Matrix    • LESSON 2.3 OCTAVE TUTORIAL (MATLAB): ...   7. Finding Roots if Linear three linear equations using Matrix- Octave    • Finding Roots if Linear three linear ...   8. Transfer Function - Process Control Example 1 using Octave    • Transfer Function - Process Control E...   9. Transfer Function - Process Control Example 2 using Octave    • Transfer Function - Process Control E...   10. Transfer Function - Process Control Example 3 using Octave    • Transfer Function - Process Control E...   11. Transfer Function -Process Control Example 4 using Octave. Solve Series, Parallel, Negative Feedback    • Transfer Function -Process Control Ex...   12. Step By Step Guide. Transfer Function -Process Control E.g 5 using Octave. Series,Parallel,Feedback    • Step By Step Guide. Transfer Function...   13. [z,p,k] = tf2zp on Octave. Transfer Function - Process Control Example 6. Step by Step Guide    • [z,p,k] = tf2zp on Octave. Transfer F...   14. Lesson 3 - 2D plot, Labels,colour, Subplot, Bar, histo , polar, semilog, loglog, 3D Mesh Surfaces    • Lesson 3 - 2D plot, Labels,colour, Su...   15. Example: Control Statments, For Loop, While Loop, If , Else, ElseIf Statement. Lesson 4.1    • Example: Control Statments, For Loop,...   16. Approximation of Roots using Bisection, Newton and Secant Method. Lesson 4.2    • Approximation of Roots using Bisectio...   17. Example: Integration Octave Quadrature Method- Trapezoidal, Simpson,Clenshaw-Curtis Rule. Lesson 5.1    • Example: Integration Octave Quadratur...   18. Plotting and Finding Roots using Octave Y = 2x^2 + 4x -4    • Plotting and Finding Roots using Octa...   19. Scientific Notation with 13 or 9 decimal places, Sprintf, Round, Floor and Fix. Using Octave Example    • Video   20. Find the Size, minimum, Maximum of an Array using Octave. Creating a Row and Column vector, Linspace    • Find the Size, minimum, Maximum of an...   Coco Simulation: 1. How to Download and install Coco Simulator using Windows    • How to Download and install Coco Simu...   2. Production of Dimethyl Ether (DME) from Methanol Using CoCo Simulation    • Production of Dimethyl Ether (DME) fr...   ------------------------------------------------------------------------------------------------------------------------------------- Email any example you'd like for me to solve something similar of [email protected] Or comment your questions Thanks for watching next tricky problems / lessons that will broaden your knowledge are coming ----------------------------------------------------------------------------------------------------------------------------------------