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May
23
answered Prove that 2 students live exactly five houses apart if
May
23
revised Anti-prime sequence
LaTeX formatting
May
23
suggested approved edit on Anti-prime sequence
May
23
revised Boundary conditions of an elastic bar
LaTeX formatting.
May
23
suggested approved edit on Boundary conditions of an elastic bar
May
23
answered Subtract gravity from 3D object in different orientations
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 approved 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 approved 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 approved 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 approved edit on Solving an equation with the same variable twice
May
18
revised Solving an equation with the same variable twice
LaTeX formatting.