atan2():
<?Php
echo atan2(0,2); // Output is 0
echo "<br>";
echo atan2(1,3); // Output 0.32175055439664
echo "<br>";
echo atan2(-1,-3); // -2.8198420991932
echo "<br>";
echo atan2(4,2); // Output is 1.1071487177941
echo "<br>";
echo atan2(2,1); // Output is 1.1071487177941
echo "<br>";
echo atan2(90,180); // Output is 0.46364760900081
?>atan2(float $y,float $x);Questions
- What does the `atan2()` function in PHP do?
- What is the purpose of the `atan2()` function in PHP?
- How is the `atan2()` function used to calculate the arctangent of the quotient of two numbers?
- What is the range of values returned by the `atan2()` function in PHP?
- How does the `atan2()` function differ from the `atan()` function in PHP?
- What are the parameters required by the `atan2()` function?
- Can the `atan2()` function be used with both degrees and radians?
- What happens if you pass invalid arguments to the `atan2()` function?
- How can you use the `atan2()` function to calculate the angle in radians given the x and y coordinates?
- What type of value does the `atan2()` function return: integer, float, or something else?
Math Functions
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