something promised, such as money, given with a view to corrupting the behavior of a person
Usually via an iterative solution that calculates the square of a value and correcting it until a close enough answer is found. This is called successive approximation.
Another method that might be used and gives an exact answer if carried out far enough is similar to long division in operation (but I don't think any calculators actually use this).
DelocalisedThe term 'delocalised' refers to an electron which is not 'attached' to a particular atom. For example, in metals, some of the outer electrons are delocalised and are free to move around the whole metal solid. This is why metals conduct electricity.
Another example of delocalised electrons is in benzene (C6H6), a cyclic molecule composed of a ring of bonded carbons, with one hydrogen attached to each. In benzene, the electrons in the C-C pi-bonds (basically the double bonds) are delocalised the whole molecule. If you look at the location of these pi-bonding electrons, they are found evenly distributed in a ring around the entire molecule. In this case, the delocalisation can be explained by something called 'resonance forms.' Often, molecules with alternating double bonds show delocalised bonding.
However, to truly understand the concept of delocalisation, some basic quantum mechanics must be used, and delocalised bonding in molecules is best explained by molecular orbital theory. In reality, all electrons are somewhat delocalised and are never associated with exactly one bond (in molecules with more than 2 atoms). Some are more localised than others (specific electrons stay mostly with specific bonds), while some are more delocalized (electrons are very free to move about many different bonds in the molecule)
The density is the same.
The metre (symbol m) is the unit of length in SI and the first international unit. Now the metre is defined by reference to time and the speed of light in vacuum with a very low uncertaintity.