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May
24
comment Is university math all about proofs?
Well, there is applied maths... and numerical solutions never prove anything. Statistics which are taught as part of mathematics at some universities don't prove anything either...
Sep
24
awarded  Autobiographer
Nov
29
comment Nspire CAS spitting out a wrong answer?
Wolfram alpha tells you the same - if you check the footer, it defines log as the natural logarithm, i.e. ln. (Still a funny way to write it) Then: 3log(x+1) + log(2x+3) = log((x+1)^3) + log(2x+3) = log((x+1)^3(2x+3)
Jan
12
awarded  Supporter
Dec
16
awarded  Teacher
Dec
16
comment How to calculate the coordinates of the middle point of a given arc?
@Michael - indeed you are right.
Dec
15
answered How to calculate the coordinates of the middle point of a given arc?