Reputation
3,715
Top tag
Next privilege 5,000 Rep.
Approve tag wiki edits
Badges
2 14 42
Impact
~177k people reached

Dec
10
comment Explain complex numbers
@tandberg: You can't always explain something at a level the other person can understand. If your cousin is familiar with the plane and a bit of analytic geometry, you can make the connection there. Otherwise, I'm not sure.
Dec
6
awarded  Custodian
Dec
6
reviewed Leave Open Are all good mathematicians fluent in computational aspects of mathematics
Dec
6
reviewed Edit Using Laplace transform to solve an IVP
Dec
6
revised Using Laplace transform to solve an IVP
improved formatting
Nov
29
answered The arithmetic mean of $X$ when arithmetic mean of $X^2 = 29$.
Nov
25
comment $2\times2$ matrices are not big enough
@MarcvanLeeuwen: The reason I made my comment is that yours seemed to imply that this isn't a very good example because it's not evident how to define a rotation matrix for $n > 2$ dimensions. I just wanted to make clear that $3$-dimensional rotation matrices are easy to define and don't commute, that's all.
Nov
24
comment $2\times2$ matrices are not big enough
@MarcvanLeeuwen: Rotation matrices don't commute in three dimensions.
Nov
24
reviewed Edit How to prove the equation $\cos x=2x$ has only one solution?
Nov
24
revised How to prove the equation $\cos x=2x$ has only one solution?
improve formating
Nov
16
answered Vector by integral, notation convention or mistake?
Nov
16
accepted Solving $y'' + (ax+b)y = 0$
Nov
15
comment Solving $y'' + (ax+b)y = 0$
Side note; how do I make the expression for $\phi(k)$ look nice? The symbols look extremely small to me.
Nov
15
asked Solving $y'' + (ax+b)y = 0$
Oct
29
awarded  Famous Question
Oct
29
comment can not find the proof that logarithms are the inverse of exponentials
What's your definition of both? People usually define one of those to be the inverse of the other.
Oct
28
comment What situations/models require calculating the area under a curve?
Are you asking specifically about finding the area below a curve, or about integrating in general? Because there is an endless list of uses for the latter.
Oct
27
awarded  Popular Question
Oct
25
comment Suppose $S$ is a minimal surface, show that the gaussian curvative is negative on all interior points
I just clicked "edit" and then "roll back" on the first revision, if that's what you're asking.
Oct
25
comment Suppose $S$ is a minimal surface, show that the gaussian curvative is negative on all interior points
I rolled the question back to what it was originally. You should probably add a disclaimer to your answer so people don't start downvoting you.