23 Mar 2010 at 12:17 #1 altich88 altich88 Associate Joined 28 Oct 2008 Posts 233 If u is a vector: u = 3 1 What does |u| mean? In my notes it has it as |u| = squareRoot( 3^2 + 1^2 ) But what does this notation mean to lead to this evaluation? Many thanks
If u is a vector: u = 3 1 What does |u| mean? In my notes it has it as |u| = squareRoot( 3^2 + 1^2 ) But what does this notation mean to lead to this evaluation? Many thanks
23 Mar 2010 at 12:20 #2 daz daz Soldato Joined 18 Oct 2002 Posts 24,081 Location Bucks It means the modulus of the vector (i.e. the length of the vector). So you're just using pythagoras to work it out.
It means the modulus of the vector (i.e. the length of the vector). So you're just using pythagoras to work it out.
23 Mar 2010 at 13:02 #3 altich88 altich88 Associate OP Joined 28 Oct 2008 Posts 233 Ah I see, great thanks
