search
HomeJavajavaTutorialPHP hypot() function

PHP hypot() function

Aug 25, 2023 pm 09:13 PM

PHP hypot() 函数

Definition and usage

hypot()The function calculates the length of the hypotenuse of a right triangle. The calculation formula for the hypotenuse is as follows:

h=sqrt(x2 y2), where x and y are the other two sides of the right triangle

For example, if x=3, y=4, then hypot(x,y)=5, that is, sqrt(32 42) = sqrt(25) =5

This function always returns a floating point number.

Syntax

hypot ( float $x , float $y ) : float

Parameters

Serial number Parameters and description
1 x

#One side of a right triangle

2 y

The other side of the right triangle

Return value

PHP hypot() function returns the length of the hypotenuse of a right triangle given x and y values

PHP Version

This function is available in PHP versions 4.x, PHP 5.x and Available in PHP 7.x.

Example

Online Demonstration

The following example calculates the length of the hypotenuse of a right triangle with side lengths 3 and 4−

<?php
   $x = 3;
   $y = 4;
   echo "hypot(" . $x . "," . $y . ") = " . hypot($x, $y);
?>

Output

This returns largest integer−

hypot(3,4) = 5

Example

Live Demo

Return value of hypot(x,y) function is equal to sqrt(x*x y*y ) as per pythogoras theorem. Following example confirms it−

<?php
   $x = 3;
   $y = 4;
   echo "hypot(" . $x . "," . $y . ") = " . hypot($x, $y) ."</p><p>";
   echo "Hypotenuse calculated by Pythogoras equation = " . sqrt(pow($x,2)+pow($y,2));
?>

output

This will return the following output−

hypot(3,4) = 5
Hypotenuse calculated by Pythogoras equation = 5

The above is the detailed content of PHP hypot() function. For more information, please follow other related articles on the PHP Chinese website!

Statement
This article is reproduced at:tutorialspoint. If there is any infringement, please contact admin@php.cn delete
How does the JVM manage garbage collection across different platforms?How does the JVM manage garbage collection across different platforms?Apr 28, 2025 am 12:23 AM

JVMmanagesgarbagecollectionacrossplatformseffectivelybyusingagenerationalapproachandadaptingtoOSandhardwaredifferences.ItemploysvariouscollectorslikeSerial,Parallel,CMS,andG1,eachsuitedfordifferentscenarios.Performancecanbetunedwithflagslike-XX:NewRa

Why can Java code run on different operating systems without modification?Why can Java code run on different operating systems without modification?Apr 28, 2025 am 12:14 AM

Java code can run on different operating systems without modification, because Java's "write once, run everywhere" philosophy is implemented by Java virtual machine (JVM). As the intermediary between the compiled Java bytecode and the operating system, the JVM translates the bytecode into specific machine instructions to ensure that the program can run independently on any platform with JVM installed.

Describe the process of compiling and executing a Java program, highlighting platform independence.Describe the process of compiling and executing a Java program, highlighting platform independence.Apr 28, 2025 am 12:08 AM

The compilation and execution of Java programs achieve platform independence through bytecode and JVM. 1) Write Java source code and compile it into bytecode. 2) Use JVM to execute bytecode on any platform to ensure the code runs across platforms.

How does the underlying hardware architecture affect Java's performance?How does the underlying hardware architecture affect Java's performance?Apr 28, 2025 am 12:05 AM

Java performance is closely related to hardware architecture, and understanding this relationship can significantly improve programming capabilities. 1) The JVM converts Java bytecode into machine instructions through JIT compilation, which is affected by the CPU architecture. 2) Memory management and garbage collection are affected by RAM and memory bus speed. 3) Cache and branch prediction optimize Java code execution. 4) Multi-threading and parallel processing improve performance on multi-core systems.

Explain why native libraries can break Java's platform independence.Explain why native libraries can break Java's platform independence.Apr 28, 2025 am 12:02 AM

Using native libraries will destroy Java's platform independence, because these libraries need to be compiled separately for each operating system. 1) The native library interacts with Java through JNI, providing functions that cannot be directly implemented by Java. 2) Using native libraries increases project complexity and requires managing library files for different platforms. 3) Although native libraries can improve performance, they should be used with caution and conducted cross-platform testing.

How does the JVM handle differences in operating system APIs?How does the JVM handle differences in operating system APIs?Apr 27, 2025 am 12:18 AM

JVM handles operating system API differences through JavaNativeInterface (JNI) and Java standard library: 1. JNI allows Java code to call local code and directly interact with the operating system API. 2. The Java standard library provides a unified API, which is internally mapped to different operating system APIs to ensure that the code runs across platforms.

How does the modularity introduced in Java 9 impact platform independence?How does the modularity introduced in Java 9 impact platform independence?Apr 27, 2025 am 12:15 AM

modularitydoesnotdirectlyaffectJava'splatformindependence.Java'splatformindependenceismaintainedbytheJVM,butmodularityinfluencesapplicationstructureandmanagement,indirectlyimpactingplatformindependence.1)Deploymentanddistributionbecomemoreefficientwi

What is bytecode, and how does it relate to Java's platform independence?What is bytecode, and how does it relate to Java's platform independence?Apr 27, 2025 am 12:06 AM

BytecodeinJavaistheintermediaterepresentationthatenablesplatformindependence.1)Javacodeiscompiledintobytecodestoredin.classfiles.2)TheJVMinterpretsorcompilesthisbytecodeintomachinecodeatruntime,allowingthesamebytecodetorunonanydevicewithaJVM,thusfulf

See all articles

Hot AI Tools

Undresser.AI Undress

Undresser.AI Undress

AI-powered app for creating realistic nude photos

AI Clothes Remover

AI Clothes Remover

Online AI tool for removing clothes from photos.

Undress AI Tool

Undress AI Tool

Undress images for free

Clothoff.io

Clothoff.io

AI clothes remover

Video Face Swap

Video Face Swap

Swap faces in any video effortlessly with our completely free AI face swap tool!

Hot Tools

SublimeText3 English version

SublimeText3 English version

Recommended: Win version, supports code prompts!

ZendStudio 13.5.1 Mac

ZendStudio 13.5.1 Mac

Powerful PHP integrated development environment

Safe Exam Browser

Safe Exam Browser

Safe Exam Browser is a secure browser environment for taking online exams securely. This software turns any computer into a secure workstation. It controls access to any utility and prevents students from using unauthorized resources.

SublimeText3 Chinese version

SublimeText3 Chinese version

Chinese version, very easy to use

EditPlus Chinese cracked version

EditPlus Chinese cracked version

Small size, syntax highlighting, does not support code prompt function