Mathematics
HDE 226868's user avatar
HDE 226868's user avatar
HDE 226868's user avatar
HDE 226868
  • Member for 9 years, 1 month
  • Last seen more than a week ago
  • A small planet somewhere in the vicinity of Betelgeuse
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About

Hi there! I'm HDE, a PhD student in astronomy. I work on pulsar timing, focusing on gravitational wave detection and single pulse studies, with the occasional FRB observation thrown in. I also enjoy long-distance running, crosswords, hot chocolate and a good book, though usually not all at once.

I'm an elected moderator on Worldbuilding, and a pro-tem mod on History of Science & Mathematics, and Astronomy. In bygone days, I moderated Mythology and Interpersonal Skills.

He/him pronouns, please.

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All Questions Answers
Score Newest
answer
11
Can the Fibonacci sequence be written as an explicit rule?
Aug 30, 2015
question
8
Non-trigonometric Continuous Periodic Functions
Sep 18, 2014
answer
8
What is the object on the front of Larson and Edwards' calculus and pre-calculus textbooks called?
Jun 22, 2015
answer
5
Compute $\int^1_0 \int^{x^2}_0\frac{y}{e^x} \, dy \, dx$
Nov 18, 2015
answer
4
Why is $\left(\frac{1}{2}\right)^{x} = \frac{1}{7}$ the same as saying: $(2)^{x} = 7$
Nov 24, 2015
answer
4
The identity $\tan({\pi\over4}-{a\over2}) = \sec(a)-\tan(a)$
Nov 9, 2015
question
4
Is there an alternative way to solve this integral?
Oct 21, 2014
answer
4
Basic algebra inequality mistake (I probably didn't break algebra)
Nov 9, 2015
answer
3
Finding the limit of $\frac {\sin(2x)} {8x}$
Nov 26, 2015
answer
3
Consider the following: $x = e^{4t}$, $ y = t + 3$ Eliminate the parameter to find a Cartesian equation of the curve.
Nov 21, 2015
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Are questions about history on topic?
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Asking too many questions?
27
Are questions necessarily "static"?
27
Community Promotion Ads - 2015
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Community Promotion Ads - 2015
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Thank you, Robert Cartaino
162
How to tell an overweight person that the hike will be too hard?
158
After the recent CM departures, are there plans to shut down network sites or Area 51?
129
Did Trump himself order the National Guard to clear out protesters (who sided with him) on the Capitol on Jan 6?
128
Did a computer error lead to 6,000 votes switching from Joe Biden to President Trump?

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