archive.log
Archive
Indexed by principle and error type, not by chapter.
4 editorials
informaticsprogrammable-scene-engine-round-trip
Programmable scene fixture: a single circle
The smallest possible programmable-scene program, one emitElement and nothing else, used to check that the engine round-trips end to end.
fixtureprogrammable-scene
Written by PLACEHOLDER Author Name
astronomykeplers-second-law-and-transit-duration
Why eccentric orbits give uneven transits
A planet crosses its star's disc faster at some points in its orbit than at others, and eccentricity sets the difference.
exoplanetstransit-photometrykeplers-second-law
Written by PLACEHOLDER Author Name
informaticsmonotonic-predicate-search
Binary search on the answer: why the predicate must be monotonic
Binary search doesn't need a sorted array. It needs a predicate that flips exactly once.
binary-searchmonotonic-predicatesearching
Written by PLACEHOLDER Author Name
physicstrigonometric-symmetry-in-kinematics
Projectile range symmetry: why 30° and 60° land in the same place
Two launch angles, one range. The landing point is the same and the flight is not.
projectile-motionkinematicstrigonometric-identity
Written by PLACEHOLDER Author Name