After the calculation of the cooling length, SIGMA displays different temperatures. These temperatures are calculated as follows:

Core temperature:

$$T_{i,Mitte} = T_{i,1} \tag{Equation 18}$$

Surface temperature:

$$T_{i,OF} = \frac{(T_{i,N} + T_{i,Hilfs.})}{2} \tag{Equation 19}$$

Mean temperature:

$$T_{i,Mittel} = \frac{2}{N^2 + N} \cdot \sum_{j=1}^N j \cdot T_{i,j} \tag{Equation 20}$$