Easing functions

by Kristoffer Gronlund, 2014

Public domain

This work is a spiritual descendent (not to say derivative work) of works done by the following individuals:

• Warren Moore (https://github.com/warrenm)
• Robert Penner (http://www.robertpenner.com/easing/)
• George McGinley Smith (http://gsgd.co.uk/sandbox/jquery/easing/)
• James Padolsey (http://james.padolsey.com/demos/jquery/easing/)
• Authors of jQuery (http://plugins.jquery.com/project/Easing)
• Matt Gallagher (http://cocoawithlove.com/2008/09/parametric-acceleration-curves-in-core.html)
• Jesse Crossen (http://stackoverflow.com/questions/5161465/how-to-create-custom-easing-function-with-core-animation)

Demo

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+------------------------------------------------------------
                           linear

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+------------------------------------------------------------
                        quadraticIn

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+------------------------------------------------------------
                        quadraticOut

|                                                       *****
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|******                                                      
+------------------------------------------------------------
                       quadraticInOut

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|****************                                            
+------------------------------------------------------------
                          cubicIn

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+------------------------------------------------------------
                          cubicOut

|                                                   *********
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|             ***                                            
|**********                                                  
+------------------------------------------------------------
                         cubicInOut

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|**********************                                      
+------------------------------------------------------------
                         quarticIn

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+------------------------------------------------------------
                         quarticOut

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|***************************                                 
+------------------------------------------------------------
                         quinticIn

|                                  **************************
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+------------------------------------------------------------
                         quinticOut

|                                             ***************
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+------------------------------------------------------------
                        quinticInOut

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+------------------------------------------------------------
                           sineIn

|                                                      ******
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+------------------------------------------------------------
                          sineOut

|                                                        ****
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+------------------------------------------------------------
                         sineInOut

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|***********                                                 
+------------------------------------------------------------
                         circularIn

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+------------------------------------------------------------
                        circularOut

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+------------------------------------------------------------
                       circularInOut

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|*************************                                   
+------------------------------------------------------------
                       exponentialIn

|                                    ************************
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+------------------------------------------------------------
                       exponentialOut

|                                             ***************
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|****************                                            
+------------------------------------------------------------
                      exponentialInOut

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                         elasticIn

                                                             
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+------------------------------------------------------------
                         elasticOut

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                            *                                
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                        elasticInOut

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+-------***------------------------------------*-------------
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                           backIn

                                                             
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+------------------------------------------------------------
                          backOut

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+-----**-----------------------------------------------------
         **           *                                      
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                ***                                          
                         backInOut

|                                                          **
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+------------------------------------------------------------
                          bounceIn

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|    **                                                      
|***                                                         
+------------------------------------------------------------
                         bounceOut

|                                         *          *    ***
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|     **  *        *                                         
|****    *          *                                        
+------------------------------------------------------------
                        bounceInOut

|                                                     *******
|                                                ***         
|                                             **             
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|                                        **                  
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|                                     *                      
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|                                *                           
|                              *                             
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|                     **                                     
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|                 **                                         
|              **                                            
|          ***                                               
|********                                                    
+------------------------------------------------------------
                        perlinInOut