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$HDI_{r}={\frac {LifeExpInd_{r}+LitInd+GDPInd}{3}}$

where

Failed to parse (SVG (MathML can be enabled via browser plugin): Invalid response ("Math extension cannot connect to Restbase.") from server "https://wikimedia.org/api/rest_v1/":): {\displaystyle LifeExpInd=\frac{LIFEEXP_r-LIFEXPMIN}{LIFEXPMAX-LIFEXPMIN}}

Failed to parse (SVG (MathML can be enabled via browser plugin): Invalid response ("Math extension cannot connect to Restbase.") from server "https://wikimedia.org/api/rest_v1/":): {\displaystyle LitInd=LIT_r/100}

<math>GDPInd=\frac{Log(GDPPCP_r*1000)-Log(100)}{Log(40000)-Log(100)}