^ such the wordsmith
agreed
now, to decipher the hidden message…
@antmandan - the simple answer to their question should have been “use the inbuilt function” - it explains 90% of all engineering calculations. 
i once saw someone puke in the middle of an exam because they had thought they were done with exams and partied, only to realise they had one more the next morning. ah engineering!
Last semester I rocked up to an exam realising that I had dedicated the previous two days studying for another one which wasn’t held until the following week.
This was my 7th semester sitting exams…