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Building IoT Applications (Chapter-4) M4-R5.1
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Relational Operators.

             A relational operator checks the relationship between two operands. If the relation is true, it returns 1; if the relation is false, it returns value 0.

Relational operators are used in decision making and loops.

Operator

Meaning

Example

Return value

<

is less than

2<9

1

< =

is less than or equal to

2 < = 2

1

>

is greater than

2 > 9

0

> =

is greater than or equal to

3 > = 2

1

= =

is equal to

2 = = 3

0

!=

is not equal to

2!=2

0

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