A woman at the rail of a lake ferry in the early morning, a long dark woven scarf blown out by the wind, patterned with fine pale waves and one red stepped line.

07:50, the first boat

f_{n} (t) = \frac{4}{π} k = 1 \sum n \frac{sin ( ( 2 k - 1 ) t )}{2 k - 1} n = 1, 2, 4, 9; f_{n} (t) \to sgn (sin t)

Fourier, 1807: a periodic signal can be written as a sum of sines and cosines. For a square wave, add more sines and the smooth waves close in on a corner, except for an overshoot of about 9% of the jump that never goes away.

Equilibrium · Jacquard wool-silk scarf, 30 × 180 cm

Fourier Scarf

CHF 160 working price

For the first boat across: 180 cm of wool and silk, twice round the neck or once and long.

A square wave in red, and the sines that almost make it, woven the length of a scarf. The back is the same argument in negative.

A study: nothing can be ordered yet. The photograph is a generated image, not a picture of a made piece or of a real person.

Wool with 30% silk, jacquard-woven: the waves are the cloth, not a print
Four partial sums in chalk, of 1, 2, 4 and 9 terms; the square wave in vermilion
30 × 180 cm, fringed ends: twice round, or once and long

Fourier Scarf

Goes with

Bag 0