Manic-depression: Alternating moods of abnormal highs (mania) and lows (depression). Called bipolar disorder because of the swings between these opposing poles in mood.A type of depressive disease. Not nearly as prevalent as other forms of depressive disorders.anic-depression: Alternating moods of abnormal highs (mania) and lows (depression). Called bipolar disorder because of the swings between these opposing poles in mood.
Quick Answer. Math is crucial to becoming a doctor because doctors use math to determine the right dosage for a drug based on a patient's body type and height. Physicians use mathematical models to conduct medical research.
The bottom line is you need to be good at university level maths to get through a Master's degree in Petroleum Engineering. The A levels needed to get on to any of the above named undergraduate courses are Mathematics, Further Mathematics, Physics , & Chemistry.