% Using the log to the base 10 function
z=log10(100)

%character variables
abc='My name is'
def=' not Slim Shady, not T Pain but Yung Joc'

% concactenating the two strings, that is combining two strings
ghi=[abc,def]

% defining variables as strings gives strange values
a=5
b=7
c1=a*b
%defining a as a string '5'.  See what you get for c2
a='5'
c2=a*b

%Defining arrays
a1=[5.6]
b1=[5.6  2.3; 5.7  8.9]
c1=[1  2  3; 4 5  6]


%plotting options  Example of x^2 vs x from 0.2 to 4
% defining a range of values for x from 0.2 to 4.0 in increments of 0.1
x=0.2:0.1:4.0
% Developing y=x^2 line.  Why do I use x.^2?
y=x.^2
% in plot -- is for dashed line and o for circles
plot(x,y,'--o','LineWidth',2,'MarkerSize',6)
% \bf - bold font
% Title of plot
title ('\bf x^2 vs x')
% Y-axis label
ylabel('\bf x^2')
% x axis label
xlabel('\bf x')
% legend for the line
legend('x^2')
% give you a grid
grid on