, , , , . .
, , , / . , :
n - ;
1 ;
xk ( ) ;
, 1 2, n.
sbval, 1. , , , .
, 5.9 , sbval. , , . , xk. , .
5.9 - sbval
sbval , 1 :
sbval (v, x1, xk, D, load, score),
v - 1;
x1, xk - , ;
D (x, y) - -, , 5.1.1.;
load (x1, v) - -, 1. n , , . sbval. , , v;
score (xk, y) - -, v. , xk, . , xk , xk.
, sbval . , MathCad .
, MathCad odesolve, . , . , 5.9, odesolve 5.10.
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5.10 - odesolve
, , MathCad sbval rkfixed, , odesolve.
step (. 5.1.3), . odesolve : (fixed step) (daptive step size), odesolve Fixed Adaptive .