Subscripts
Subscripts Command The element in row i and column j of A is denoted by A(i,j). For example, A(4,2) is the number in the fourth row and second column. For our magic square, A(4,2)...
Tagged: matrix
Displaying Graphics Images
Image Types and Display Methods To display a graphics file image, use either image or imagesc. For example, assuming RGB is an image, figure(‘Position’,[100 100 size(RGB,2) size(RGB,1)]); image(RGB); set(gca,’Position’,[0 0 1 1]) [warning]This image...
Reading, Writing, and Querying Graphics Image Files
Working with Image Formats In its native form, a graphics file format image is not stored as a MATLAB matrix, or even necessarily as a matrix. Most graphics files begin with a header containing...
Matlab Core Graphics Objects
Core graphics objects include basic drawing primitives: Line, text, and polygon shells (patch objects) Specialized objects like surfaces, which are composed of a rectangular grid of vertices Images Light objects, which are not visible...
Matlab Class for Graphing Functions
Matlab Functions Display Fully Commented Example Code The class block is the code that starts with the classdef key word and terminates with the end key word. The following example illustrated a simple class...
Adding Text Annotations to Graphs
What Are Text Annotations? Text annotations are boxes containing text strings that you compose. The box can have a border and a background, or be invisible. The text can be in any installed text...
Constructing Sparse Matrices
Creating Sparse Matrices Converting Full to Sparse Creating Sparse Matrices Directly Creating Sparse Matrices from Their Diagonal Elements MATLAB software never creates sparse matrices automatically. Instead, you must determine if a matrix contains a...