question: calculates the n-degree b-spline derivative for the given span i at the given position u . concode_field_sep int spanCount concode_elem_sep T tmp concode_elem_sep boolean continuous concode_elem_sep int degree concode_elem_sep T[] controlPoints concode_elem_sep Array<T> knots concode_elem_sep float d6 concode_field_sep T cubic concode_elem_sep T cubic concode_elem_sep BSpline set concode_elem_sep float locate concode_elem_sep T derivativeAt concode_elem_sep T derivativeAt concode_elem_sep float approximate concode_elem_sep float approximate concode_elem_sep float approximate concode_elem_sep T valueAt concode_elem_sep T valueAt concode_elem_sep T calculate concode_elem_sep T calculate concode_elem_sep int nearest concode_elem_sep int nearest concode_elem_sep T cubic_derivative concode_elem_sep T cubic_derivative
target: T function ( final T arg0 , final int arg1 , final float arg2 , final T [ ] arg3 , final int arg4 , final boolean arg5 , final T arg6 ) { switch ( arg4 ) { case 3 : return cubic_derivative ( arg0 , arg1 , arg2 , arg3 , arg5 , arg6 ) ; } return arg0 ; }