Reputation
2,671
Top tag
Next privilege 3,000 Rep.
Cast close & reopen votes
Badges
9 27
Newest
 Yearling
Impact
~84k people reached

Nov
19
comment Most ambiguous and inconsistent phrases and notations in maths
@Mariano Suárez-Alvarez The notation $\text{Log}$ is also sometimes reserved for the principal branch, often when $\log$ for the (general) multi-valued function is used. In whichever context, I've seen this cause confusion in obtaining results.
Nov
15
comment What was the first bit of mathematics that made you realize that math is beautiful? (For children's book)
In fact: $e^{ix}=\cos(x)+i\sin(x)$.
Nov
13
comment What was the first bit of mathematics that made you realize that math is beautiful? (For children's book)
Good point. I think at the time I "understood" what numbers were, but these new numbers (complex numbers) were so strange, and were presented with the added "imaginary" verbiage that they were mesmerizing to me! Of course later I realised that complex numbers are not complex at all and that there is absolutely nothing imaginary about the idea of $i$. Complex numbers are a system of numbers which obey a certain set of rules in a consistent way. But I'm pleased to have been captivated :-)
Nov
11
comment The Integral of Multiple Tangent Functions
Try increasing the working precision: Integrate[..., WorkingPrecision->100].
Nov
11
revised Is the derivative of $\{x\}$ on $(0,1)$ always equal to $1$?
added 311 characters in body
Nov
11
comment Is the derivative of $\{x\}$ on $(0,1)$ always equal to $1$?
So it's down to the method used to compute the derivative. Need to be judicious with tools.
Nov
10
accepted Is the derivative of $\{x\}$ on $(0,1)$ always equal to $1$?
Nov
10
revised Is the derivative of $\{x\}$ on $(0,1)$ always equal to $1$?
added 1 character in body
Nov
10
comment Is the derivative of $\{x\}$ on $(0,1)$ always equal to $1$?
Mathematica is great, but it does have bugs. I've found at least 5 so far in my life time of using it. From infinite summations, to sum convergence conditions, to this !! I've filed another bug report with Mathematica ;-)
Nov
10
revised Is the derivative of $\{x\}$ on $(0,1)$ always equal to $1$?
added 1 character in body
Nov
10
asked Is the derivative of $\{x\}$ on $(0,1)$ always equal to $1$?
Nov
9
revised Finding a limit using L'Hospital's rule
edited title
Nov
9
answered Finding a limit using L'Hospital's rule
Nov
9
revised Finding a limit using L'Hospital's rule
edited body
Oct
24
accepted Nature of the range of $e^x$
Oct
24
comment Nature of the range of $e^x$
I've updated the question. Hope that helps.
Oct
24
revised Nature of the range of $e^x$
added 14 characters in body
Oct
24
revised Nature of the range of $e^x$
deleted 11 characters in body
Oct
24
asked Nature of the range of $e^x$
Oct
21
comment calculus first impressions
It should be a bit more than just algebraic calculations. Did you not see a limit $\lim$ in the maths somewhere? Do you really understand the limiting process? I'd try some examples and don't jump the gun too soon. Take advantage of the "spare" time you have if you find it easy to understand :-) Or read on further so you will then understand the later lectures!