Search With Seek4Info.com
Welcome to collectivesolver - Programming & Software Q&A with code examples. A website with trusted programming answers. All programs are tested and work.

Contact: aviboots(AT)netvision.net.il

Buy a domain name - Register cheap domain names from $0.99 - Namecheap

Scalable Hosting That Grows With You

Secure & Reliable Web Hosting, Free Domain, Free SSL, 1-Click WordPress Install, Expert 24/7 Support

Semrush - keyword research tool

Boost your online presence with premium web hosting and servers

Most popular tags

python java c c# cpp javascript php vb# typescript nodejs go rust scala swift kotlin pascal html dart ruby r css bootstrap groovy win32 sql winapi mysql jquery lua winforms pascal-string bash kotlin-string swift-string c-string cpp-string go-string cpp-vector f# opengl java-string php-string c#-string vbnet-string pascal-array swift-array rust-string python-string scala-string c-array javascript-string php-array javascript-array typescript-string cobol rust-vector typescript-array python-list reactjs scala-array c-windows go-array nodejs-string kotlin-array nodejs-array sdl2 cpp-matrix c-matrix cpp-array c#-list vbnet-list pascal-matrix go-slice c#-array java-array nodejs-express swift-matrix c#-matrix sdl3 angularjs generate-random-floating-point-numbers all-permutations-combinations kotlin-matrix typescript-matrix vbnet-array kotlin-list rust-matrix go-matrix javascript-matrix raylib glfw extract-words-with-first-letter-lowercase-from-string convert-specific-column-decimal-matrix-to-string convert-specific-row-decimal-matrix-to-string number-made-prime-deleting-single-digit convert-days-human-readable-weeks-days square-root-rounded-down-to-nearest-integer remove-middle-word-string area-triangle-herons-formula inverse-matrix
Disclosure: My content contains affiliate links.

39,890 questions

51,821 answers

573 users

How to use atan() function to compute the principal value of the arc tangent of N in PHP



167 views
asked Apr 4, 2016 by avibootz
retagged Jun 13, 2025 by avibootz
Share on
share on gp share on fb share on tw share on li share on re share via email

1 Answer

0 votes 
echo "atan(1.0) = " . atan(1.0) . "<br />";
echo "atan(-1.0) = " . atan(-1.0) . "<br />";
echo "atan(0.0) = " . atan(0.0) . "<br />";
echo "atan(-0.0) = " . atan(-0.0) . "<br />";
echo "atan(INF) = " . atan(INF) . "<br />";
 
/*
run:
  
atan(1.0) = 0.78539816339745
atan(-1.0) = -0.78539816339745
atan(0.0) = 0
atan(-0.0) = 0
atan(INF) = 1.5707963267949
  
*/

 



answered Apr 4, 2016 by avibootz

Related questions

 | Search With Seek4Info.com
Powered by Question2Answer
...