319 reputation
211
bio website phrogz.net
location Boulder, CO
age 41
visits member for 3 years, 4 months
seen Mar 19 at 21:44

I like Ruby, Lua, Io, JavaScript…and my real-life children and wife :)


Jan
7
awarded  Critic
Jan
7
awarded  Commentator
Jan
7
comment How would you explain to a 9th grader the negative exponent rule?
Have the students watch Vi Hart's "How I feel about logarithms".
Nov
13
awarded  Popular Question
Sep
11
revised Euler rotations from orthonormal vectors
edited body
Sep
11
comment Euler rotations from orthonormal vectors
Alternatively, I realize that I can use the lookAt() function, and then dot the actual local +Y with the desired +Y found by the above to find the Z angle I need to rotate. I may do this, but would like to avoid this round-about mechanism if a simple rotation angle derivation is possible.
Sep
11
asked Euler rotations from orthonormal vectors
May
21
awarded  Notable Question
Nov
13
revised Calculating capacity: number of servers needed for various probability levels
added 3 characters in body
Nov
13
comment Calculating capacity: number of servers needed for various probability levels
Thanks for the insight. FWIW the company has an enterprise account spending obscene amounts with Google for search support; the XML API is what we'll likely be using. Now...given those distributions, any answer to the question for the formula itself? ;)
Nov
13
asked Calculating capacity: number of servers needed for various probability levels
Sep
1
comment any number raised to the power of infinity
A nice answer; I note that you don't include the case of a=1 exactly. :)
Jun
20
awarded  Popular Question
Nov
30
awarded  Yearling
Nov
24
comment Equation for control point distance for fixed-length cubic Bézier path (with specific constraints)
@J.M. Thanks for the details. That's unfortunate; I had hoped that the constraints on the points would sufficiently restrict the solution to something with a simple closed form.
Nov
23
revised Equation for control point distance for fixed-length cubic Bézier path (with specific constraints)
edited title
Nov
23
revised Equation for control point distance for fixed-length cubic Bézier path (with specific constraints)
edited title
Nov
23
revised Equation for control point distance for fixed-length cubic Bézier path (with specific constraints)
added 339 characters in body; edited tags
Nov
23
revised Equation for control point distance for fixed-length cubic Bézier path (with specific constraints)
added 539 characters in body
Nov
23
comment Equation for control point distance for fixed-length cubic Bézier path (with specific constraints)
@user7530 Yes, with the added constraint that the control points are always at right angles to the line connecting the two end points. I'll edit the question with a diagram for clarity.