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Aug
2
comment What is the actual geometric meaning of trigonometric operations such as adding cos,sine,tan
@oemb I'm not sure I understand, but if I do, then yeah, since $r=1$, they are just the $x$ and $y$ lengths.
Jun
16
comment Ideal amount of piles to sort a stack of 250 cards (magic the gathering)
Is the machine controlled by electronics? Because if so, you only need two piles to do a sort in-place in the stack.
Jun
2
comment Show that the question “Is there life beyond earth?” is decidable
Could you please include a proof that the set of all possible universes is countable?
Apr
9
awarded  Organizer
Apr
9
revised Is $\exp(x)$ the same as $e^x$?
The question doesn't have much to do with calculus or derivatives - just notation
Apr
9
suggested approved edit on Is $\exp(x)$ the same as $e^x$?
Mar
27
suggested rejected edit on How is Euler fluids equation considered unsolved?
Mar
17
comment Probability of another 3 integers with same sum and product as the first 3 integers
@Henry The title says "same sum and product", which is why I concluded that, though I agree it is mildly unclear.
Mar
17
comment Probability of another 3 integers with same sum and product as the first 3 integers
@Henry Unfortunately not quite what the question is asking. It's asking for $xyz=x+y+z$.
Mar
14
awarded  Yearling
Mar
4
comment How to tell where parentheses go in functional notation?
@WChargin Physics has slightly different conventions than math for this. Usually, if parentheses are omitted in physics, you parenthesize all terms up until the $t$ term.
Jan
24
awarded  Nice Answer
Dec
25
comment Easy example why complex numbers are cool
I seem to recall a use of complex numbers in the book "One, Two, Three, Infinity" which fascinated me, but I don't quite recall it. It concerned a treasure map referencing a guillotine that had disintegrated, but using complex numbers worked regardless...
Dec
21
comment What are some mathematically productive ways to waste time?
Can we please try to give more than one-line answers to this question?
Dec
19
awarded  Constituent
Dec
10
awarded  Caucus
Oct
19
comment How to show that five points in ℝ³ are cospherical?
Why does this work?
Oct
17
comment Limit of a 0/0 function
@Hans $g'$ can be zero if $f'$ is zero, because you just have another L'Hospital's case and take $f''/g''$ Otherwise, just compute the limit normally.
Oct
17
comment Development of the Idea of the Determinant
Hello! I've noticed that your link to "Making Determinants Less Weird" has broken - do you know an alternate location this resource may be found?
Oct
16
comment How could we define the existence of an object/element in the Euclidean space?
Which type of Euclidean space?