750 reputation
414
bio website physics.uwa.edu.au/~styler
location Melbourne, Australia
age 33
visits member for 4 years
seen Jun 14 at 10:02

Feb
27
comment Integration by parts
@SMH: I don't know why, it works fine for me. This is the imgur link: i.imgur.com/2IrTU.gif
Feb
27
awarded  Student
Feb
27
answered Integration by parts
Feb
27
asked How does the method of Lagrange multipliers fail (in classical field theories with local constraints)?
Feb
11
awarded  Citizen Patrol
Jan
17
comment Is everything an expression?
Everything in Mathematica is an expression...
Jan
12
comment Find the positive real number(s) $c$ such that the graphs of $y=x^c$ and $x=y^c$ intersect (somewhere) at an angle $\frac{\pi}{4}$
I forgot to say - your solution is superior since the final equation that needs solving is simpler.
Jan
12
revised Find the positive real number(s) $c$ such that the graphs of $y=x^c$ and $x=y^c$ intersect (somewhere) at an angle $\frac{\pi}{4}$
added second solution and some comments
Jan
12
comment Find the positive real number(s) $c$ such that the graphs of $y=x^c$ and $x=y^c$ intersect (somewhere) at an angle $\frac{\pi}{4}$
Your second solution (which is, of course, correct) comes from just swapping the curves, or equivalently $c \to 1/c$. In my solution (now updated) that comes from using $\pm\pi/4$.
Jan
12
awarded  Editor
Jan
12
revised Find the positive real number(s) $c$ such that the graphs of $y=x^c$ and $x=y^c$ intersect (somewhere) at an angle $\frac{\pi}{4}$
added 48 characters in body
Jan
12
answered Find the positive real number(s) $c$ such that the graphs of $y=x^c$ and $x=y^c$ intersect (somewhere) at an angle $\frac{\pi}{4}$
Dec
30
comment Books to learn physics, being a math major
@becko - Any particular reason?
Dec
30
comment Books to learn physics, being a math major
@timur - they are a little dated, but still more modern than most uni physics courses. It would be good for a math major to see and use index notation - too many have a unhealthy disrespect for it! I haven't read Thirring...
Dec
30
comment Books to learn physics, being a math major
+1 for Arnold's Mathematical Methods of Classical Mechanics
Dec
30
answered Books to learn physics, being a math major
Nov
20
comment Evaluating the improper integral $\int\limits_{0}^{\infty} \frac{x^{a-1} - x^{b-1}}{1-x} \ dx $
The initial equation given for I(a) requires a pole prescription to be well defined. The second equation implicitly assumes that the Cauchy principle value was used in the definition of I(a). After that it's clear sailing...
Oct
19
awarded  Supporter
Oct
17
awarded  Teacher
Oct
17
answered Evaluating the improper integral $\int\limits_{0}^{\infty} \frac{x^{a-1} - x^{b-1}}{1-x} \ dx $