Right associative??

[audinue]

Please read the following link:

http://en.wikipedia.org/wiki/Shunting_yard_algorithm

... o1 is associative or left-associative and its precedence is less than (lower precedence) or equal to that of o2, or
o1 is right-associative and its precedence is less than (lower precedence) that of o2 ...

What is the meaning of 'right-associative' and 'right-to-left evaluation', please?

I've wrote the algorithm and the last output is:
3 4 2 * 1 5 - 2 ^ 3 ^ / +

Something terribly wrong... T_T

[BEN10]

If two operators have the same precedence,then which operator to be evaluated first is determined by the associativity rule.
right associativity- the opearators are evaluted from right to left
eg a=b=3;
here both '=' have the same priority thus b=3 is assigned first due to right associativity
left associativity- the opearators are evaluted from left to right
eg a=3/2*5;
both '/' and '*' have the same precedence and due to left ass. 3/2 is evaluated first.
Hope u understand