Conditionals and loops in MATLAB

IF, else, if-elseif, if-elseif-else, for loop,

1. If statements

The basic form of if statements in MATLAB is:-

if logical expression
    statements
end

Here, The end statement marks the end of the statements and are executed if the logical expression is true.

2. The else statements:-

The basic form of the else statement is:-

if logical expression
   statement 1
else
   statement 2
end

Example 1:-

a= input ('enter a=');
b=input ('enter b=');
c=input ('enter c=');
if c==2
   disp('c is equal to 2')
elseif a~=c 
disp('a is not equal to c')
end

Figure 1:- IF and Elseif Statements

Example 2:- If-elseif-else Statement

x=input('enter the value of x:- ');
if x>10
    y=x+1
elseif x<0
    y=x+2
else y=sqrt(x)
end

Figure 2:- IF -elseif-else Statements

Example 3:- For loop :-

total=0;
for k=1:15
    total=5*k.^2-2*k+total;
end
disp('The sum for the 15 term is :-' )
disp(total)

Above script is to compute the sum…