<p> Data XY </p>

9bd0920d-bc00-4225-97aa-86993f6bdf69 5 3 12 decimal

&[DATE] &[TIME] - &[FILENAME]

The hyper fast Cholesky LS minimize

data char size clr plot k 1 data rows range r3 k el char : r4 k el size : r5 k el clr : 13 mat for data r3 r4 r5 augment 21 line :

XY 1 4.18 2 4.67 3 5.3 4 5.37 5 5.45 6 5.74 7 5.65 8 5.84 9 6.36 10 6.38 11 6.31 12 6.46 13 6.48 14 6.59 15 6.74 16 6.58 17 6.85 18 6.53 19 6.68 20 7.01 21 6.82 22 6.65 23 6.95 24 7.12 25 7.14 26 6.91 27 6.94 28 7.23 29 6.9 30 7.39 31 6.94 312 mat :

X XY 1 col : Y XY 2 col : 12 mat data XY . 12 black plot : n XY rows : 31 line

x Φ 1 x ln x sqrt 13 mat transpose :

Cholesky companion solver
........ NUMERIC ........ j 1 x Φ length range i 1 X length range M i j el X i el Φ j el : for for Q M transpose M * : d M transpose Y * : b Q 1 -^eval d * : 41 line

ε 1012 -^:

x fit b x Φ * :

FIT x ε 50 0.1 range : i 1 x rows range fit i el x i el fit eval : for x fit augment 31 line :

b 4.183439 0.998177 0.080548 - 31 mat

data FIT 2 1 sys