% Useful general Matlab commands 
% Victoria Hsiao, 01/11/13

clear all; % clears all variables from the workspace
clc; %clears the command window
close all; %closes all figure windows 

%Suppress all outputs from appearing in the command window 
%with a semi-colon
%Comment your code with the percent symbol

%Creating a vector 
V1 = [1 2]; %This creates a vector with one row, two columns
V2 = [1; 2]; %This creates a vector with two rows, one column

%Plotting
t = 0:1:100; %This says go from 0 to 100 in increments of 1. 
x = 5.*(0:1:100); %multiplies everything in the vector by 5
x2 = 10.*(0:1:100); 

plot(t,x); % your basic plot command

figure; %opens a new figure instead of overwriting your previous one
% You can add additional options like color 'r' and linestyle '--' 
% Type 'doc plot' in the command window for a complete set
plot(t,x,'r--','linewidth',2)
hold on %Allows you to plot on the same graph
plot(t,x2,'b--','linewidth',1)

%Labeling your plot 
xlabel('Time','fontsize',14); % You don't have to define fontsize
ylabel('X concentration')
title('T versus X','fontsize',16); 
legend('X','X2') %creates a legend in the order that you plotted them in