Shabab uses 'calculations' also. U can't work in the world without 'numbers'. War taas keliya ma aha, those bombs they make is based on 'quantity, elements, pressure, force' and so many mathamatical theories. Why don't they want Somalis to learn those theories and we can give them a bigger bomb in the future, rather then relying on the western made one. All we need is scientitic and academias and wallahi we can create even more sophisticated weapons, as long as we have students learning maths. Without maths we can't achieve nothing. Engineering needs the maths first before they can put together the materials. I studied IT and it's low level, the maths is already done for u, all you learn is how to apply it or adapt it.
It's not 'invention' at all, the inventors are mathamaticians.