func funcIdelta(vals []Value, args Expressions, enh *EvalNodeHelper) Vector {
	return instantValue(vals, enh.out, false)
}
func funcIdelta(vals []Value, args Expressions, enh *EvalNodeHelper) Vector {
	return instantValue(vals, enh.out, false)
}
func funcIdelta ( vals [ ] Value , args Expressions , enh * EvalNodeHelper ) Vector { return instantValue ( vals , enh . out , false ) }
// === idelta(node model.ValMatric) Vector ===
=== idelta ( node model . ValMatric ) Vector ===