QED This stands for the Latin words ‘ Quod erat demonstrandum’ which means ‘What had to be proved’. QED is usually written at the end of the proof of a theorem. QUADRANT – (noun) A quadrant has two meanings in maths. See diagrams 11. QUADRATIC – (adjective) A quadratic equation has the form ax&>2 &> […]
To access this content, you must purchase Basic Annual Paid Membership, or log in if you are a member.