Hi there, Good evening all. Ok, Ive just started my HNC in electrical engineering (1 month in via open learning)and to be honest, I'm struggling. I understand all the concepts of the equations regarding bending moments, shear force diagrams etc but i cant seem to get to grip with the equations.. I have a level maths but i achieved this 8-9 years ago so i'm after a bit of directional help. Q1, what or how is the best way to write to the 'poer minus 4' ( the minus sign up in the air)? Q2, Can anyone explain to me in simple terms the best way to understand poers e.g. 1mm4=(1x10^3)4=1x10^12M Also if there is any good reading material out there that may be useful please point me in the right direction. Much appreciated.