Phyllotaxis
the spirals are counted, not admired
Generator

corner-crossing

The same disturbance is given to two placement rules, one with a falloff exponent of 1.5 and one of 3, and the bar counts how many of six seeds let more of it through under the deeper rule. Above the line means the deeper rule passed more. Reading left to right the disturbance is given a longer memory, from white noise to a correlation length of 99 organs. The two change hands: the shallower rule passes more up to a correlation length of 2.8 organs and the deeper one from 1.4 organs onward. The comparison is made seed by seed rather than between two averages, because the spread between seeds at one setting is larger than the difference being measured.
Which rule passes more drift — exponent 1.5 against exponent 3The same disturbance is given to two placement rules, one with a falloff exponent of 1.5 and one of 3, and the bar counts how many of six seeds let more of it through under the deeper rule. Above the line means the deeper rule passed more. Reading left to right the disturbance is given a longer memory, from white noise to a correlation length of 99 organs. The two change hands: the shallower rule passes more up to a correlation length of 2.8 organs and the deeper one from 1.4 organs onward. The comparison is made seed by seed rather than between two averages, because the spread between seeds at one setting is larger than the difference being measured.63036white1/61.44/62.83/64.55/69.55/699.55/6seeds agreeing — up: the deeper rule passed morecorrelation length of the disturbance, in organsexponent 1.5 against 3 · 182/30 organs · 6 seedsgenerated from a stated rule, not drawn to look right

Drawn at its defaults, in the depth, in the wrong unit. It carries a slider over pair, so the claim in its caption strip is restated at every stop rather than at one. It takes no options at all, so every essay calling it gets this exact drawing.

Called by 1 essay

the blast radius of changing it

What a plant might be doing

The corner that does not move

Read as degrees of drift getting through rather than as a ratio, and compared seed by seed, the deep and shallow rules change hands. The share that goes to the deeper rule climbs from twenty-three per cent under white noise to ninety-four at a correlation length of a hundred organs — and the crossing sits at two or three organs whether the two rules differ by a factor of four or sixty-one.

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