step-change-and-error ( dt dx..nt/dt x..nt -- dx..dn error )


Vocabulary
math.runge-kutta

Inputs
dtan object
dx..nt/dtan object
x..ntan object


Outputs
dx..dnan object
erroran object


Definition
USING: kernel ;

IN: math.runge-kutta

: step-change-and-error
( dt dx..nt/dt x..nt -- dx..dn error )
[ runge-kutta-stages ] 2curry
[ [ rk over ] [ higher-order-error ] bi* ] bi ;