〈Fixed point arithmetic〉 

 Multiplication Routine 

 MTH_Mul 

27

 Division routine 

 MTH_Div 

28

 Fixed-point-> Floating-point type conversion macro 

 MTH_FLOAT 

29

 Floating point-> Fixed point type conversion macro 

 MTH_FIXED 

30

 Integer-> Fixed-point type conversion routine 

 MTH_IntToFixed 

31

 Fixed-point-> integer conversion routine 

 MTH_FixedToInt 

32

 ternary product-sum operation 

 MTH_Product 

33

 〈Other functions〉 

 Square root calculation 

 MTH_Sqrt 

34

 Calculate hypotenuse length of right triangle 

 MTH_Hypot 

35

 surface normal vector calculation 

 MTH_CompateNormVect 

36