Table 1. The notation of polynomial terms using index and the corresponding K-notation expressed with kinematic posture coordinates (x₁, x₂, x₃, x₄, x₅).

v-axis index	Unique combination (power)	Examples of polynomial terms	K-notation of polynomial structure
1	(1)	x1, x2	K1, K2
2	(2)	$x_1^2$	K11
3	(3)	$x_1^3$	K111
4	(4)	$x_1^4$	K1111
5	(5)	$x_1^5$	K11111
6	(1,1)	x1x2, x2x3	K12, K23
7	(1,2)	$x_1^2{x}_2$, $x_2{x}_3^2$	K112, K233
8	(1,3)	$x_1{x}_2^3$	K1222
9	(1,4)	$x_1{x}_2^4$	K12222
10	(2,2)	$x_1^2{x}_2^2$	K1122
11	(2,3)	$x_1^2{x}_2^3$	K11222
12	(1,1,1)	x1x2x3	K123
13	(1,1,2)	$x_1{x}_2{x}_3^2$	K1233
14	(1,1,3)	$x_1{x}_2{x}_3^3$	K12333
15	(1,2,2)	$x_1{x}_2^2{x}_3^2$	K12233
16	(1,1,1,1)	x1x2x3x4	K1234
17	(1,1,1,2)	$x_1{x}_2{x}_3{x}_4^2$	K12344
18	(1,1,1,1,1)	x1x2x3x4x5	K12345