One subspace, solved and regularised, at 1.0% noise
At its defaults it draws one subspace, solved and regularised, at 1.0% noise. Two error curves against the number of bidiagonalisation steps, on a logarithmic vertical axis. The unregularised iterate reaches 0.1426 at step 20 and then climbs to 161 — a factor of 1127. The iterate with a penalty on the projected problem reaches 0.1429 and stays within 0.00% of it for the rest of the run.
hybrid-curves is one function in lib/figures/hybrid.js —
hybrid regularisation — a penalty inside the subspace, and the rule that transfers to it. Everything below came out of it during this build, at
arguments taken from the essays rather than invented for this page. A figure here is the
figure a reader meets in an essay, and if the generator changes, this page changes with it.
At its defaults
Drawn even though every essay passes arguments — which on this site is every essay, at 100% of placements since the standard pass. A default nothing exercises is a trap for the next essay to call this with none, and this is the page where a default that has drifted from the figures around it becomes visible.
Two error curves against the number of bidiagonalisation steps, on a logarithmic vertical axis. The unregularised iterate reaches 0.1426 at step 20 and then climbs to 161 — a factor of 1127. The iterate with a penalty on the projected problem reaches 0.1429 and stays within 0.00% of it for the rest of the run.
noise: 0.01
The arguments are the ones The step that stops mattering passes. A value nobody placed would be a picture no essay asked for and no claim was ever checked against.
Two error curves against the number of bidiagonalisation steps, on a logarithmic vertical axis. The unregularised iterate reaches 0.1426 at step 20 and then climbs to 161 — a factor of 1127. The iterate with a penalty on the projected problem reaches 0.1429 and stays within 0.00% of it for the rest of the run.
noise: 0.1
The arguments are the ones The step that stops mattering passes. A value nobody placed would be a picture no essay asked for and no claim was ever checked against.
Two error curves against the number of bidiagonalisation steps, on a logarithmic vertical axis. The unregularised iterate reaches 0.1675 at step 3 and then climbs to 1607 — a factor of 9598. The iterate with a penalty on the projected problem reaches 0.1720 and stays within 14.17% of it for the rest of the run.
noise: 0.02
The arguments are the ones The step that stops mattering passes. A value nobody placed would be a picture no essay asked for and no claim was ever checked against.
Two error curves against the number of bidiagonalisation steps, on a logarithmic vertical axis. The unregularised iterate reaches 0.1498 at step 10 and then climbs to 322 — a factor of 2146. The iterate with a penalty on the projected problem reaches 0.1500 and stays within 2.02% of it for the rest of the run.
noise: 0.002
The arguments are the ones The step that stops mattering passes. A value nobody placed would be a picture no essay asked for and no claim was ever checked against.
Two error curves against the number of bidiagonalisation steps, on a logarithmic vertical axis. The unregularised iterate reaches 0.1114 at step 24 and then climbs to 32.2 — a factor of 289. The iterate with a penalty on the projected problem reaches 0.1180 and stays within 0.00% of it for the rest of the run.
noise: 0.001
The arguments are the ones The step that stops mattering passes. A value nobody placed would be a picture no essay asked for and no claim was ever checked against.
Two error curves against the number of bidiagonalisation steps, on a logarithmic vertical axis. The unregularised iterate reaches 0.1056 at step 27 and then climbs to 16.1 — a factor of 153. The iterate with a penalty on the projected problem reaches 0.1079 and stays within 0.00% of it for the rest of the run.
What it checked while drawing
Every figure above checked its own claims on the way to being drawn, and a claim that failed
would have stopped the picture rather than shipped a wrong one. Those checks used to leave
no trace at all: a passing one returned true and the only evidence the figure had
checked anything was that nothing crashed. The list below is what they actually said, collected
by running this generator with an observer installed — not a description of
what it is believed to check.
5 distinct claims across 6 sets of arguments, grouped below by shape — because most of them are one sentence with a different number in it, and how many separate times that sentence was put to the test is the informative part.
a noise level small enough to be noise
a size the reference solve is affordable at
and the regularised one does not
enough steps for the unregularised run to turn
the unregularised run leaves its own best behind
Against the rule
The rule does not apply to it. It factorises nothing, so there is no residual it could be withholding. That is worth stating rather than leaving blank: a site that reported the rule as satisfied by every generator would be counting mostly generators the rule never reached.
Across the library: the rule bites on 217
of 397 generators —
199 print a residual and
18 are exempt with a published reason;
180 factorise nothing.
Read from lib/residual-rule.js, which is the same body the gate enforces from,
and the gate's last check fails the build if this page and it disagree about any generator.
Where it is called
Changing this generator changes every figure on this list. That is what makes the list worth publishing rather than keeping in a check script.