I have a question in median

[ecaiu]

Hello

I am beginer
In books, there's written like this.
We can find five numbers median using only six comparsions

I can do using sever comparisong to do sort five nubmers
But I can't find median six comparison

Plz, help me.
Or tell me address of web site or source code
And tell me such guru community

Have a nice day :)