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The Tertius U(1,1)F
The series around U0:
| The tertius is symmetric with regard to U0-U1. It can be derived from the primus by taking the subsequent differences between Un+1 and Un of that series (with U0 = u0-u-1 = 1).
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The tertius coefficients matrix
Disregarding signs, this matrix is identical to the quartus coefficients matrix.
The degree of a polynome is one less than its index.
Exponents decrease with steps of 1.
Note that the columns come in pairs with an index shift.
U1: | 1 | |||||||||||||||||||||||||
U2: | 1 | -1 | ||||||||||||||||||||||||
U3: | 1 | -1 | -1 | |||||||||||||||||||||||
U4: | 1 | -1 | -2 | 1 | ||||||||||||||||||||||
U5: | 1 | -1 | -3 | 2 | 1 | |||||||||||||||||||||
U6: | 1 | -1 | -4 | 3 | 3 | -1 | ||||||||||||||||||||
U7: | 1 | -1 | -5 | 4 | 6 | -3 | -1 | |||||||||||||||||||
U8: | 1 | -1 | -6 | 5 | 10 | -6 | -4 | 1 | ||||||||||||||||||
U9: | 1 | -1 | -7 | 6 | 15 | -10 | -10 | 4 | 1 | |||||||||||||||||
U10: | 1 | -1 | -8 | 7 | 21 | -15 | -20 | 10 | 5 | -1 | ||||||||||||||||
U11: | 1 | -1 | -9 | 8 | 28 | -21 | -35 | 20 | 15 | -5 | -1 | |||||||||||||||
U12: | 1 | -1 | -10 | 9 | 36 | -28 | -56 | 35 | 35 | -15 | -6 | 1 | ||||||||||||||
U13: | 1 | -1 | -11 | 10 | 45 | -36 | -84 | 56 | 70 | -35 | -21 | 6 | 1 | |||||||||||||
U14: | 1 | -1 | -12 | 11 | 55 | -45 | -120 | 84 | 126 | -70 | -56 | 21 | 7 | -1 | ||||||||||||
U15: | 1 | -1 | -13 | 12 | 66 | -55 | -165 | 120 | 210 | -126 | -126 | 56 | 28 | -7 | -1 | |||||||||||
U16: | 1 | -1 | -14 | 13 | 78 | -66 | -220 | 165 | 330 | -210 | -252 | 126 | 84 | -28 | -8 | 1 | ||||||||||
U17: | 1 | -1 | -15 | 14 | 91 | -78 | -286 | 220 | 495 | -330 | -462 | 252 | 210 | -84 | -36 | 8 | 1 | |||||||||
U18: | 1 | -1 | -16 | 15 | 105 | -91 | -364 | 286 | 715 | -495 | -792 | 462 | 462 | -210 | -120 | 36 | 9 | -1 | ||||||||
U19: | 1 | -1 | -17 | 16 | 120 | -105 | -455 | 364 | 1001 | -715 | -1287 | 792 | 924 | -462 | -330 | 120 | 45 | -9 | -1 | |||||||
U20: | 1 | -1 | -18 | 17 | 136 | -120 | -560 | 455 | 1365 | -1001 | -2002 | 1287 | 1716 | -924 | -792 | 330 | 165 | -45 | -10 | 1 | ||||||
U21: | 1 | -1 | -19 | 18 | 153 | -136 | -680 | 560 | 1820 | -1365 | -3003 | 2002 | 3003 | -1716 | -1716 | 792 | 495 | -165 | -55 | 10 | 1 | |||||
U22: | 1 | -1 | -20 | 19 | 171 | -153 | -816 | 680 | 2380 | -1820 | -4368 | 3003 | 5005 | -3003 | -3432 | 1716 | 1287 | -495 | -220 | 55 | 11 | -1 | ||||
U23: | 1 | -1 | -21 | 20 | 190 | -171 | -969 | 816 | 3060 | -2380 | -6188 | 4368 | 8008 | -5005 | -6435 | 3432 | 3003 | -1287 | -715 | 220 | 66 | -11 | -1 | |||
U24: | 1 | -1 | -22 | 21 | 210 | -190 | -1140 | 969 | 3876 | -3060 | -8568 | 6188 | 12376 | -8008 | -11440 | 6435 | 6435 | -3003 | -2002 | 715 | 286 | -66 | -12 | 1 | ||
U25: | 1 | -1 | -23 | 22 | 231 | -210 | -1330 | 1140 | 4845 | -3876 | -11628 | 8568 | 18564 | -12376 | -19448 | 11440 | 12870 | -6435 | -5005 | 2002 | 1001 | -286 | -78 | 12 | 1 | |
U26: | 1 | -1 | -24 | 23 | 253 | -231 | -1540 | 1330 | 5985 | -4845 | -15504 | 11628 | 27132 | -18564 | -31824 | 19448 | 24310 | -12870 | -11440 | 5005 | 3003 | -1001 | -364 | 78 | 13 | -1 |