Are there any example of Mutual recursion?

Question

Are there any examples for a recursive function that calls an other function which calls the first one too ?

Example :

function1()
{    
    //do something 
    function2();
    //do something
}

function2()
{
    //do something 
    function1();
    //do something
}

Answer 1

An example might be the minmax algorithm commonly used in game programs such as chess. Starting at the top of the game tree, the goal is to find the maximum value of all the nodes at the level below, whose values are defined as the minimum of the values of the nodes below that, whose values are defines as the maximum of the values below that, whose values ...