| ⇢ | A | DigitCalculator::useComplementaryInsteadOfModule() added | |
| ⇢ | A | DigitCalculator::replaceDigit() added | |
| ⇢ | A | DigitCalculator::calculateAdditionalDigit() added | |
| ⇢ | A | DigitCalculator::calculateSingleSum() added | |
| B | ↗ | A | DigitCalculator::calculate() improved |
| A | ↛ | DigitCalculator::useAdditionalInsteadOfModule() removed | |
| A | ↛ | DigitCalculator::digitSum() removed |