However, Cauchy observed that the stress vector T {\displaystyle T} across a surface will always be a linear function of the surface's normal vector n {\displaystyle n} , the unit-length vector that is perpendicular to it.
Some do and some don't. A Nintendo Wii costs approximately $250 (the price range is $160-$380). <br /><br /> Don't forget that, in addition to the Wii itself, you have to buy games and controls; that'll cost an extra $50-$100.
Amazon also has the black premium Wii U 32GB pack for Â£299.99, coming with a copy of Nintendo Land. ShopTo has a number of different bundles for the Wii U console available, but its cheapest is for Â£279.85 â which is the Nintendo Wii U 8GB and a copy of Tekken Tag Tournament 2.