Sketch equations, can you explain them ?

Hi,

I was wondering what new feature is introduced in sketch equations. I've read the what's new manual but I can't figure out what's the new feature you didn't have in the past.

In 2013 I can create an equation in a sketch between two entities: say for instance I'm creating a rectangle, putting a 100 mm dimension on a side (D1), and then an equation for the dimension of the other side (something like D2@Sketch1 = D1@Sketch1 * 2.

Alex

SolidworksSolidworks 2014 Beta