Author: neha.bhagirath

Solving Systems of Non-Linear Equations

In today’s lesson we will be discussing how to solve a system of non-linear equations. We will be discussing the following commands: 1. Fsolve 2. Solve and Vpasolve Recall that we discussed solving a system of linear equations in a previous lesson – click here if you missed it. Linear equations are those that graph…
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August 3, 2020
Eliminations = Factorization; A = LU

Today we will be discussing the following topics: 1. What is LU Factorization? 2. Factoring a Matrix Using the LU Factorization Method 3. Backward and Forward Substitution 4. Solving a System of Equations using A = LU 5. Band Matrices 6. The Cost of Matrix Calculations VIDEO COMING SOON! What is LU Factorization? LU Factorization…
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July 29, 2020
Polynomial Operations, Fitting Data to a Polynomial, Evaluating Fit

Today we will be covering the following topics: 1. Polynomial Operations – Roots, Poly, fminsearch 2. Roots of Non-Linear Functions – Fzero 2. Fitting Data to a Polynomial 3. Evaluating how well the data fit VIDEO COMING SOON Polynomial Operations – Roots, Poly To find the roots (aka the zeroes) of a polynomial function, use…
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July 28, 2020
Importing and Exporting Files

Today we will be covering the following topics: 1. Importing Files into MATLAB 2. Operations with Imported Data 3. Exporting Files from MATLAB 4. Viewing Contents of a MATLAB File Before Opening video coming soon! Importing Files into MATLAB There are ways to import data from other file extensions into MATLAB to use as datasets.…
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July 28, 2020
User Defined Functions and Recursive Functions

Today we will be covering the following topics: 1. User Defined Functions – A general function can go under many different names – an M-File Function, M-Function, or sometimes people just refer to it as a function 2. Nested Functions 3. Nargin and Varargin 4. Recursive Functions VIDEO COMING SOON User Defined Functions Note before…
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July 28, 2020
3D Plotting: Meshgrid and Ndgrid; Contour, Mesh, Plot3, and Surface Plots

Today we will be covering the following topics: 1. Meshgrid and Ndgrid 2. Contour Plots 3. Plot 3 4. Surface Plots – Using Surf 5. Mesh Plots – Using Mesh 6. Changing Color of 3D Plots VIDEO COMING SOON! Meshgrid and Ndgrid MATLAB uses the commands meshgrid and ndgrid to go from a 1D…
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July 28, 2020
Slice; Vector Field Plots

In today’s lesson, we’re going to be covering the following topics: 1. Slice Function 2. Vector Field Plots video coming soon Slice Function The built-in MATLAB function slice allows you to slice through the x, y, or z plane of a 3D shape. The slice can be orthogonal (perpendicular) to the specified plane, and there…
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July 28, 2020
Creating Input Statements

In today’s lesson, we will be covering how to create input statements. Input statements are used in scripts to get the user to input a specific number rather than assigning one value to a variable. For example, if I wanted to make a code that added together two numbers that someone using my program would…
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July 25, 2020
X-Y Plotting; Adding Titles and Axis Labels; Controlling the Axes

In today’s lesson, we will be covering the following topics: 1. X-Y Plotting 2. Fplot and Ezplot 3. Adding Titles and Axis Labels 4. Controlling the Axes VIDEO COMING SOON X-Y Plotting To make a plot (only in two dimensions for now), we need a matching number of x- and y- values, just like we…
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July 25, 2020
Anonymous Functions and Inline Functions

In today’s lesson, we will be covering the following topics: 1. Anonymous Functions 2. Inline Functions video coming soon Anonymous Functions Anonymous functions aren’t technically “functions” in the sense that they need a special function file, but can be written within a script (check out the lesson on User Defined Functions here). They can accept…
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July 25, 2020