Reference for Processing version 1.2. If you have a previous version, use the reference included with your software. If you see any errors or have suggestions, please let us know. If you prefer a more technical reference, visit the Processing Javadoc.
Name  acos() 


Examples  float a = PI; float c = cos(a); float ac = acos(c); // Prints "3.1415927 : 1.0 : 3.1415927" println(a + " : " + c + " : " + ac); float a = PI + PI/4.0; float c = cos(a); float ac = acos(c); // Prints "3.926991 : 0.70710665 : 2.3561943" println(a + " : " + c + " : " + ac); 

Description  The inverse of cos(), returns the arc cosine of a value. This function expects the values in the range of 1 to 1 and values are returned in the range 0 to PI (3.1415927).  
Syntax  acos(value) 

Parameters 


Returns  float  
Usage  Web & Application  
Related  cos() asin() atan() 