Mathematics
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Anders Gustafson
  • Member for 6 years, 6 months
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13
How would I express the series $|1+1+1|+|1+1-1|+|1-1+1|+|1-1-1|+|-1+1+1|+|-1+1-1|+|-1-1+1|+|-1-1-1|$ in summation notation?
Jul 27, 2017
question
3
Values for $a$ and $b$ in $y=\cos(x)+a\cos(bx)$ such that every real value for $x$ has either a positive or $0$ value for $y$
Apr 8, 2017
question
2
Is there a quick way to tell if a differential equation contradicts itself?
Sep 6, 2021
question
2
Standard Deviation for sums of fair dice given the number of dice, and the number of sides on each die
Mar 11, 2018
question
1
Does the equation $Distance=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}$ apply to the two points $(i,0)$ and $(0,1)$?
Dec 3, 2017
question
1
How do I evaluate this summation?
Nov 14, 2015
question
1
Circles in the case of $Distance=\sqrt{x^2+y^2}$, with $x$ as a real number, and $y$ as a real multiple of $a+bi$, with $a$ and $b$ as constants
Apr 26, 2019
question
1
Is there a name for this method of approximating a differential equation?
Aug 21, 2020
question
1
What function $f(x)$ would this limit, involving 3 integrals be equal to?
Aug 23, 2020
question
0
Besides circles, are there other curves for which $\vec{r}'(t)$ and $\vec{r}''(t)$ are always perpendicular, described by only elementary functions?
Jun 25, 2021
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62
Realistic Santa and Reindeer
52
Would a "ring language" be possible?
36
How might a collective such as The Borg develop?
34
Could I use colors to distinguish variables in a paper?
20
Would it be possible for hunter gatherers to accidentally colonize an exoplanet, from an asteroid knocking a rock containing a cave into space?

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