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visits member for 3 years, 10 months
seen Aug 27 at 2:54

Apr
16
comment Domino's thin crust slicing area sans calculus (circle in squares)
OK, I got it. For some reason, I was looking for right triangles with dimension 1-2-Sqrt[5], which have no superspecial properties.
Apr
16
accepted Domino's thin crust slicing area sans calculus (circle in squares)
Apr
16
revised Domino's thin crust slicing area sans calculus (circle in squares)
@RonGordon
Apr
16
comment Domino's thin crust slicing area sans calculus (circle in squares)
I know you're joking, but how do you google something like this? I'm sure someone's done it, but I can't find the right terms to google.
Apr
16
asked Domino's thin crust slicing area sans calculus (circle in squares)
Feb
18
accepted Find angle in secant/chord diagram
Feb
18
asked Find angle in secant/chord diagram
Feb
9
comment Motivation for linear transformations
@AndréNicolas You're describing engineering, not math. Pure mathematics is an art form. It does not require motivation. What is the motivation for a beautiful sunset, a baby's smile, the silent destruction of inhabited worlds? That is math.
Jan
25
comment Let G be a finite group with more than one element. Show that G has an element of prime order
Does Z4 (the mod 4 group) have an element of prime order? The identity has order 1, and the other elements have order 4.
Jan
25
comment Topology: The Board Game
It sounds like this would be easy or at least possible to do online?
Jan
16
answered Why do the reals need to be constructed? Do they somehow “span” the rationals, the roots, and the transcendentals like e and pi?
Jan
16
comment Number Theory and Congruency
I know that x=6.5 isn't a solution, but why? Is it just understood that we don't accept fractional solutions? I read this problem as "I took a number x, multiplied it by 2, added 7, and got a number y. I then divided y by 17, and found the remainder to be 3". How does the restriction on x having to be an integer enter into the problem?
Jan
16
revised Number Theory and Congruency
fractions not allowed
Jan
16
comment Why do the reals need to be constructed? Do they somehow “span” the rationals, the roots, and the transcendentals like e and pi?
Someone please add an answer that refers to "least upper bound", thanks!
Jan
16
answered Number Theory and Congruency
Dec
8
awarded  Yearling
Sep
12
accepted What technique reduces factorable ax^2+bx+c=0 to factorable where a=1
Sep
12
asked What technique reduces factorable ax^2+bx+c=0 to factorable where a=1
Sep
2
comment What is “multiplication by juxtaposition”?
My issue is when students write it in a non-programming context. I want to point them to a webpage that says "5/7x" is wrong and they should say either 5x/7 or 5/(7x). Right now, I tell them that anyway, but don't have any sort of authoritative backup.
Aug
27
accepted Precedence of concatenation: Is $5/7y$ equal to $(5/7)\times y$ or $5/(7\times y)$?