format  Fixed32 b = MTH_IntToFixed (Sint32 a);
 Input  a: Integer data
 Output  None
 Function value  b: Type conversion result to fixed point
 Function  Performs type conversion processing from integer to fixed-point format. 

  format  Sint32 b = MTH_FixedToInt (Fixed a)
 Input  a: Fixed point data
 Output  None
 Function value  b: Type conversion result to integer
 Function  Performs type conversion processing from fixed point to integer format. 

  format  Fixed32 result = MTH_Product (Fixed32 * a, Fixed32 * b)
 Input  a: 3 multiplicand data strings
:  b: 3 multiplier data strings
 Output  None
 Function value  result: Product-sum operation result
 Function  result = a [0] * b [0] + a [1] * b [1] + a [2] * b [2] is processed.