equations essentially the same way as a summation would and we'll play the exact same trick we'll see like which factors have a dependence on each on the variable we're maxing over bringing out in a smaller group together and so we'll recursively be able to calculate the max while running along the sequence so there'll be a max that start at X 0 and y observation Z 0 what is the X 0 that's most likely given the observation so far but actually we'll do a little more than if what we do is find an egg Sierra that's most likely based on the