mbrooke
Batteries Not Included
 Location
 United States
 Occupation
 *
Is P = V * ( V / R ) the same as V2 / R ? Why? And if not which is correct? .....................................
Whoa cool!V²  It can be done
Hold down "alt" and type 0178
Very kludgey. The old site allowed super and subscripts directly.V²  It can be done
Hold down "alt" and type 0178
Nice word! , thanks.Very kludgey.

Yes, V*V or square. I should have mentioned that, my mistakeThe only problem is that on this Forum it is not possible to render subscripts and superscripts. Hence the very ambiguous V2 to represent V squared (V * V).
Other notation conventions are V^2 and V**2 for V squared. Some places even use Vexp2.
I will ask to see if we can get subscipt & superscript added
In mathematical terms, why does it work out?Yes, they are same.
Would it help to look at it like (V/1)*(V/R) ?In mathematical terms, why does it work out?
I also tried to simplify P = V * ( V / R ) and got V*V/R*R but thats obviously not right.
Make up some numbers for V and R and do the math each way.In mathematical terms, why does it work out?
The alt codes Dennis mentioned are known as Unicode characters:There are many alt codes you can use
"alt" 0176 is degrees 180°
Kind of. I always assumed that you multiply both numbers in the brackets by the one outside the brackets.Would it help to look at it like (V/1)*(V/R) ?
Multiply the numerators is V*V or Vsquared.
Multiply the denominators is 1*R or R
Make up some numbers for V and R and do the math each way.
This might work only on oldfashioned keyboards with number pads.V²  It can be done
Hold down "alt" and type 0178