I would hesitate to call this math. When baking and you perform substitution of blackberries with raspberries, do you consider that a form of chemistry? It ca

I would hesitate to call this math. When baking and you perform substitution of blackberries with raspberries, do you consider that a form of chemistry? It can certainly be justified with it; but I hesitate to say it is the same thing. Same for when a builder chooses to use a different type of fastener when constructing something. It could be borne of experience, but I would not necessarily call it material engineering at that point. Even if the exact same practice is how materials exploration happens, at a superficial level.