This is done by dividing the objectâs mass by its volume. The formula for density is: Density = Mass / Volume. This equation can also be written: Ï=m/V. In the formula, Ï is the symbol for density. Scientists measure density in kilograms per cubic metre (kg/m3). m is the symbol for mass. Scientists measure mass in kilograms (kg).
Definition - What does Proof of Concept (POC) mean? A proof of concept (POC) is a demonstration, the purpose of which is to verify that certain concepts or theories have the potential for real-world application. POC is therefore a prototype that is designed to determine feasibility, but does not represent deliverables. Proof of concept is also known as proof of principle.
There are many different methods of proof, such as direct proofs, proof by contradiction, proof by induction etc, but in general, all they consist of is, initially, a set of statements known to be true, a bunch of logical arguments based on these truths, and then some logical conclusion that follows from the argument.