MATLAB: Got couple of questions from college assignments

homeworkmatrix

1.Assume matrix MX contains a single non-zero value. Place the row number containing this non-zero value into NZR and the column value in NZC

2.Assume Matrix Mz has already been defined. Place the row numbers of all elements in Mz that are negative into vector MzRN and the corresponding column numbers into MzCN

Both answers need to be answered in a single statement

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 doc find

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MATLAB: Can someone help I have to submit these work on tuesday. I just start learning matlab Thanks in advance

Use linspace(), legend(), and plot(). Here's a generic sample that can help you get started. Adapt as needed.

clc;    % Clear the command window.
close all;  % Close all figures (except those of imtool.)
clear;  % Erase all existing variables. Or clearvars if you want.
workspace;  % Make sure the workspace panel is showing.
format long g;
format compact;
fontSize = 30;
% Create 500 points between -pi and 3*pi
x = linspace(-pi, 3*pi, 500);
% Make equation y = e^x 
y1 = exp(-x);
% Make equation y = cos(2*pi*x/period)
period = 1.20;
y2 = cos(2*pi*x/period);
% Make equation y = e^x * cos(2*pi*x/period)
y3 = exp(-x) .* cos(2*pi*x/period); % Note, using .* not *
% Plot them.
plot(x, y1, 'b-', 'LineWidth', 2);
hold on;
plot(x, y2, 'r-', 'LineWidth', 2);
plot(x, y3, 'm-', 'LineWidth', 2);
% Make it fancy
title('y = e^x * cos(2*pi*x/period)', 'FontSize', fontSize);
xlabel('X', 'FontSize', fontSize);
ylabel('Y', 'FontSize', fontSize);
grid on;
legend('blah', 'foo', 'snafu'); % Put whatever strings you want.
% Set up figure properties:
% Enlarge figure to full screen.
set(gcf, 'Units', 'Normalized', 'OuterPosition', [0 0 1 1]);
% Get rid of tool bar and pulldown menus that are along top of figure.
set(gcf, 'Toolbar', 'none', 'Menu', 'none');
% Give a name to the title bar.
set(gcf, 'Name', 'My Homework', 'NumberTitle', 'Off')

For x^2 you must use x.^2 because x is an array. It should be easy to do your homework with this example. More examples are in the help.

MATLAB: Solve for ODE question

This is similar to an SIR model. There are plenty of simple to complex source code for this

https://www3.nd.edu/~nancy/Math20750/Demos/demo8_1/demo8_1.html

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MATLAB: Can someone help I have to submit these work on tuesday. I just start learning matlab Thanks in advance

MATLAB: Solve for ODE question

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