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bio website people.rit.edu/ltb1063/…
location United States
age 22
visits member for 3 years, 2 months
seen 17 hours ago

Mod on Christianity.SE!

Aside from Christianity, I have many other interests, including mathematics, programming, writing, reading, 3D modeling, martial arts, rock climbing, and many more.


May
23
comment Number of ways of spelling Abracadabra in this grid
I think your problem is that you're treating picking the "A" as one of two choices, when there's really nothing you can do about it. Two routes to a B and two from each B to an R gives $2*2 = 4$ ways.
May
22
revised imaginary numbers - how can I understand them - especially as they occur in 'roots' of polynomials?
LaTeX formatting.
May
22
suggested suggested edit on imaginary numbers - how can I understand them - especially as they occur in 'roots' of polynomials?
May
22
revised Did I sketch this polar curve correctly?
LaTeX formatting.
May
22
suggested suggested edit on Did I sketch this polar curve correctly?
May
22
revised How do I explain why $dA/dr = 2 \pi r$ geometrically?
LaTeX formatting.
May
22
suggested suggested edit on How do I explain why $dA/dr = 2 \pi r$ geometrically?
May
20
comment Logic Puzzle of the age of three sons
@Fixee: [chuckle] Yes, but would you SAY that? :P Actually...you'd probably put in a comment about birthdays... :P
May
19
revised Logic Puzzle of the age of three sons
Fixed mistakes and added a bit.
May
19
comment Logic Puzzle of the age of three sons
@svenkatr: Good catch. Editing...
May
19
answered Logic Puzzle of the age of three sons
May
18
revised Solving an equation with the same variable twice
Removed my unnecessary editor's note.
May
18
suggested suggested edit on Solving an equation with the same variable twice
May
18
revised Solving an equation with the same variable twice
LaTeX formatting.
May
18
suggested suggested edit on Solving an equation with the same variable twice
May
18
awarded  Nice Answer
May
18
comment How many 10 letter 'words' can be made with no repeated letters and at least 8 consonants?
Note to everyone: this is similar to math.stackexchange.com/questions/39428/… , but it's different enough that I think it warrants its own solution.
May
18
comment Counting number of distinct regions with intersecting circles
@soandos: Yes, "exterior" does mean the space occupied by no circles, so your "13" is correct. Also, as the OEIS entry makes no mention of the size of the circles, I think it's any sized circles.
May
18
comment $n$ by $n$ Primally Magic Squares
@Jacob: Nice links! Those are not quite what I'm going for here though; my condition is merely that each column, row, and diagonal needs to be prime in at least one direction, not both as they did.
May
17
comment calculate location on an isometric world map
Actually, u and v are Cartesian values as well. Also, that image seems to be a rotate-then-transform kind of thing, so my formulas may be wrong, although I haven't checked.