MATLAB - Relational Operations

Quiz

Relational operators can also work on both scalar and non-scalar data. Relational operators for arrays perform element-by-element comparisons between two arrays and return a logical array of the same size, with elements set to logical 1 (true) where the relation is true and elements set to logical 0 (false) where it is not.

The following table shows the relational operators −

Sr.No.	Operator & Description
1	< Less than
2	<= Less than or equal to
3	> Greater than
4	>= Greater than or equal to
5	== Equal to
6	~= Not equal to

Example

Create a script file and type the following code −

a = 100;
b = 200;
if (a >= b)
max = a
else
max = b
end

When you run the file, it produces following result −

max =  200

Apart from the above-mentioned relational operators, MATLAB provides the following commands/functions used for the same purpose −

Sr.No.	Function & Description
1	eq(a, b) Tests whether a is equal to b
2	ge(a, b) Tests whether a is greater than or equal to b
3	gt(a, b) Tests whether a is greater than b
4	le(a, b) Tests whether a is less than or equal to b
5	lt(a, b) Tests whether a is less than b
6	ne(a, b) Tests whether a is not equal to b
7	isequal Tests arrays for equality
8	isequaln Tests arrays for equality, treating NaN values as equal

Example

Create a script file and type the following code −

% comparing two values
a = 100;
b = 200;
if (ge(a,b))
max = a
else
max = b
end

% comparing two different values
a = 340;
b = 520;
if (le(a, b))
   disp(' a is either less than or equal to b')
else
   disp(' a is greater than b')
end

When you run the file, it produces the following result −

max =  200
a is either less than or equal to b

matlab_operators.htm

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