General is a high military rank, in most nations the highest rank, although some nations refer to high-ranking generals as marshals. The title general is used by land and sometimes air forces. In the navies of the world, the rank of full admiral is equivalent.
... \sqrt {b^2-4ac}</math>
in the formula should be understood as "either of those element(s) of the field whose square equals b2 - 4ac". In some fields, ...