Usually in maximizing a function of two variables, one might consider partial derivatives.
All borates can be considered derivatives of boric acid, B(OH).
Fulvalenes forms stable organometallic complexes that can be formally considered derivatives of the dianion CH.
Many hybrid martial arts can be considered derivatives of such cross-training.
Although organosilicon polymers can be considered structural derivatives of polysilicon hydrides, they are not synthesized directly from them.
This shows that Milankovitch theory fits the data extremely well, over the past million years, provided that we consider derivatives.
This is especially helpful when considering partial derivatives.
All of the manufacturers supplying designs for the V bombers considered airliner derivatives at one point or another.
These securities, known as C.M.O.'s, are considered derivatives because they are created out of pools of home mortgages.
The F-16 design also inspired the design of other aircraft, which are considered derivatives.