• Skip to primary navigation
  • Skip to main content
  • Skip to primary sidebar

The Programming Expert

Solving All of Your Programming Headaches

  • HTML
  • JavaScript
  • jQuery
  • PHP
  • Python
  • SAS
  • Ruby
  • About
You are here: Home / PHP / php asin – Find Arcsine and Inverse Sine of Number Using asin() Function

php asin – Find Arcsine and Inverse Sine of Number Using asin() Function

January 26, 2022 Leave a Comment

To find the arcsine, or inverse sine, of a number, we can use the php asin() function.

asin(x)

In php, we can easily use trigonometric functions from the collection of php math functions. These php math functions allow us to perform trigonometry easily.

To find the arcsine of a number, we use the php asin() function.

Below is the php syntax to find the inverse sine of a number.

asin(x)

The input to the asin() function must be a float between -1 and 1. The return value will be a float between -pi/2 and pi/2 radians.

echo asin(0.5); // 0.5235987755982989
echo asin(0); // 0.0
echo asin(-0.75); // -0.848062078981481

Finding the Inverse Sine of a Number in php

Arcsine is defined as the inverse of the sine of a number.

Below, we show that if we pass a number to sin() and then call the php asin() function, we get back the same number.

echo asin(sin(pi()/3)); // 1.0471975511965976
echo pi()/3; // 1.0471975511965976

Hopefully this article has been beneficial for you to understand how to use the asin() function in php to find the arcsine of a number.

Other Articles You'll Also Like:

  • 1.  php e – Using M_E and exp() Function to Get Euler’s Constant e
  • 2.  Check if String Ends with Given String in php with str_ends_with()
  • 3.  Get First Element of Array in php
  • 4.  php Convert Degrees to Radians with php deg2rad() Function
  • 5.  php array_merge() – Merge One or More Arrays Together by Appending
  • 6.  php min – Find Minimum Value of Array in php
  • 7.  Get Word Count of String in php with str_word_count() Function
  • 8.  php unset – How to Destroy Variables in php
  • 9.  Add Months to Date in php
  • 10.  What is the Difference Between unset() and unlink() in php?

About The Programming Expert

The Programming Expert is a compilation of a programmer’s findings in the world of software development, website creation, and automation of processes.

Programming allows us to create amazing applications which make our work more efficient, repeatable and accurate.

At the end of the day, we want to be able to just push a button and let the code do it’s magic.

You can read more about us on our about page.

Reader Interactions

Leave a Reply Cancel reply

Your email address will not be published. Required fields are marked *

Primary Sidebar

About The Programming Expert

the programming expert main image

Welcome to The Programming Expert. We are a group of US-based programming professionals who have helped companies build, maintain, and improve everything from simple websites to large-scale projects.

We built The Programming Expert to help you solve your programming problems with useful coding methods and functions in various programming languages.

Search

Learn Coding from Experts on Udemy

Looking to boost your skills and learn how to become a programming expert?

Check out the links below to view Udemy courses for learning to program in the following languages:

Copyright © 2023 · The Programming Expert · About · Privacy Policy