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Feb
16
comment solving linear diophantine equation with inequalities
hey, thanks! wait, when does the \mod form get used?
Feb
16
revised solving linear diophantine equation with inequalities
added 4 characters in body
Feb
16
revised solving linear diophantine equation with inequalities
added 354 characters in body
Feb
16
comment solving linear diophantine equation with inequalities
...and is there supposed to be that much space around ${\rm mod}$? If not, what should I be using for MathJax?
Feb
16
asked solving linear diophantine equation with inequalities
Feb
16
comment A sequence of 5 cards is drawn from a standard 52-card deck,with replacement. How many sequences will have at least one king or one queen, or both?
sounds correct to me.... replacement after each one?
Feb
12
asked determining the multiple solutions for GF(2) discrete logarithms of polynomials with partially known coefficients
Feb
12
awarded  Notable Question
Dec
8
awarded  Caucus
Nov
9
revised Simple numerical methods for calculating the digits of $\pi$
fixed mathjax typo; please don't put mathjax on plain old numbers.
Nov
9
comment Simple numerical methods for calculating the digits of $\pi$
that's easy: since the arctangent is a power series, convergence is dictated by the largest argument to the arctangent. In my case, it's 2/11.
Oct
15
comment How to move a body to a point using only velocity?
NJGUY: you still need to clarify your question. What do you mean by "move" ? Are you writing software to display something at certain points in time? Or do you just want to know the velocity (vx, vy) required to get an object from point (x1,y1) to point (x2,y2) in some time T?
Oct
15
comment How to move a body to a point using only velocity?
The writeup in Wikipedia of Bresenham's algorithm seems more complicated than it should, and also seems like it does not handle lines with steep slopes very well. This really shouldn't be that complicated. We also don't know whether NJGUY wants to draw individual pixels (in which case Bresenham's algorithm is a good match) or just wants to calculate an object's position at various positions in time. Whether you call it vector algebra or two parametric equations x = fx(t), y = fy(t), I still think it's simpler than trying to use time-independent algorithms.
Oct
15
comment How to move a body to a point using only velocity?
@RobertHarvey: no, you don't need the slope if you are using vector algebra.
Oct
15
comment How to move a body to a point using only velocity?
Please clarify your question. Is the second body's position fixed?
Aug
14
awarded  Cleanup
Aug
14
revised LFSR with limited numbers of runs?
rolled back to a previous revision
Aug
14
revised LFSR with limited numbers of runs?
mathjax is not needed for this simple an example.
Jul
20
awarded  Yearling
Jul
20
awarded  Popular Question