PHP sin() Function

PHP provides various important trigonometry functions. sin() is one of them. It is used to calculate trigonometry problem and returns the sine of the arg parameter. The arg parameter is in radians.

Syntax:

Parameter	Description	Required/Optional
number	Specify value in radians	Required

Example1

<?php
echo "Your argument value is : 3*pi()/2";
echo "<br>"."By using 'sin()' function your number is :".(sin(3*pi()/2));
?>

Output:

Your argument value is : 3*pi()/2
By using 'sin()' function your number is :-1

Example2

<?php
$num=3;
echo "Your number is :".$num;
echo "<br>"."By using 'sin()' function your number is :".(sin($num));
?>

Output:

Your number is :3
By using 'sin()' function your number is :0.14112000805987

Example3

<?php
$num=(-3);
echo "Your number is :".$num;
echo "<br>"."By using 'sin()' function your number is :".(sin($num));
?>

Output:

Your number is :-3
By using 'sin()' function your number is :-0.14112000805987

Example4

<?php
$num=0;
echo "Your number is :".$num;
echo "<br>"."By using 'sin()' function your number is :".(sin($num));
?>

Output:

Your number is :0
By using 'sin()' function your number is :0

Example5

<?php
$num=(M_PI) ;
echo "Your number is (M_PI) : ".$num;
echo "<br>"."By using 'sin()' function your number is :".(sin($num));
?>

Output:

Your number is (M_PI) : 3.1415926535898
By using 'sin()' function your number is :1.2246467991474E-16

Example6

<?php
$num=(M_PI_2) ;
echo "Your number is (M_PI_2) : ".$num;
echo "<br>"."By using 'sin()' function your number is :".(sin($num));
?>

Output:

Your number is (M_PI_2) : 1.5707963267949
By using 'sin()' function your number is :1

Next TopicPHP Math

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PHP sin() Function

Syntax:

Example1

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