The author has taken part in the design and implementation of Longtium C2 microprocessor, and is mainly in charge of the design of FPU and the implementation of transcendental functions.
The content of this research is as follows: Direct modeling for tooth surface of ti worm in ANSYS is difficult for the equations of contact lines being a kind of transcendental function.
For example, the definition of sin can be given by reference to the Content Dictionary for transcendental functions distributed from the OpenMath Web site (see Resources for a link).
Oh, and the fact that you can't use the floating point processor directly to calculate transcendental functions (it's done in software instead).
