Not all values used to compute the HDI (Human Development Index) are normalized; some of them instead have the form ( X − X min ) / ( X norm − X min ) {\displaystyle \left(X-X_{\text{min}}\right)/\left(X_{\text{norm}}-X_{\text{min}}\right)} .
並非所有用於計算HDI（人類發展指數）的值都被標準化; 其中一些人有形式 ( X − X min ) / ( X norm − X min ) {\displaystyle \left(X-X_{\text{min}}\right)/\left(X_{\text{norm}}-X_{\text{min}}\right)} 。