The imagesc command automatically scales the datavalues to cover the colormap. Scalar data using the image command and a colormap. Images in Matlab, the RGB system for colors, image file formats (.gif and. There are n steps, each step involves one multiplication and one Recursive technique sometimes called Horner’s method. Notes2_7 The function mypolyval.m evaluates polynomials using a famous Then we took a different approach to sorting a linear array using Sorted array (in Matlab there is the sort.mįunction). Location then we used this function to create mysort.m, a sorting function that works by repeatedlyįinding the maximum in a given array, and removing that element to go into the , a function to find the maximum in a one-dimensional (linear) array and its This is shown in the function riemann2.mįunctions to do sorting. These functions can be saved separatelyĪnd used that way, or simply included below the main function as a so-called subfunction if their primary use is primarily within one We illustrated the use of auxiliaryįunctions to perform part of a program. That will compute and visualize Riemann sums (to be continued)įunction riemann.m. Also, we have planning notes for a function riemann.m Sequence of integers where the next integer in the sequence is n/2 or 3n+1ĭepending whether our current element in the sequence, n, is even or odd From a programming point of view, this isĪn application that uses a ‘while’ loop and updates to the next “case” using a Matrix analysis with a “for” loop: signcheck.m Matrix creation with a “for” loop: myhilb.m The function parabs.m that includes various calculations involving The function tent.m that makes use of the “if”Ĭommand. Matlab functions and programming constructs. Notes1_24: Script files record commands in a file thatĬan be replayed by giving the file name in the command window. (dots, circles etc), line thickness, marker size. Options for color, line style (solid, dashed, Plotting polygons and parametricĬurves, the commands hold, axis. Notes1_22 Strings, the ASCII code, num2str. Manipulating arrays, linear addressing, logical addressing.

Notes1_17 Anonymous functions, accessing, modifying, Is downloaded into your current folder, type the statement load data into theĬommand window and variables will be loaded into your workspace. Practice exercises: One data.mat Two Threeĭata.mat is a MATLAB data file containing variables and their values. Operations (multiplication *, and transpose ‘), colon operator, compositeĪrrays, array constructors zeros, ones,rand, simple Notes1_13 creating arrays by hand, array operators (with the dot), matrix Notes1_10 variables, arithmetic operators, arrays, built-in Matlab functions, Inf and NaN Homework 5 Some problems in fixed point iteration and Programming a recursive function to do sorting. Intmult.m Matlab function to multiply two integers from their single-digit arrays e.g Note: This problem is actually more fun if we have the cells in With 1’s where the dead cells are located. I =(rand( m,n)0) %creates a logical array %first case: dead cells are randomly distributed There are two cases to consider per the homework. Is the game of life where a group of cells specified by a logical array I areĪlways “dead”. Problem, plotting points around the circle (slightly modified). Solutions Here’s a nice solution to the “star” Plots from point data, coordinate transformations Plotting: 3-dimensional curves and surfaces, pseudocolor Stable/unstable fixed points and convergent/divergent iterations. Internal Matlab format, text files, copy-and-paste using num2strĭoing the same thing over and over with the goal of arriving at a limit. Just functions, but scatterplots, and polygonsĬellular automata Wolfram’s cellular automata, the Game of

Double precision floating point numbers, creating arrays, complex arrays, function handlesħ54 floating point numbers (an article on number representation)

Doublecommand matlab