2. Probability statistics is used to judge the qualification of concrete test blocks (mathematical statistics and non-mathematical statistics);
3. The golden section method is used to calculate the maximum bending moment and the most dangerous load.
4. The large-span cantilever formwork support is statically indeterminate;
5. Interface stress is calculated by area calculation;
6. Volume calculation is adopted for earthwork calculation.
. . . . . . . , can not be separated from mathematics.