The entire set of assembler instructions for the FPU is relatively small and could be memorized rapidly. Learning which parameter(s) can be used with each instruction should take only slightly longer. The main difficulty is in developing sound programming techniques to avoid some of the pitfalls peculiar to the FPU.
The main purpose of this document is to show that using the FPU can be relatively easy with minimal effort. Once the basics have been mastered, any computation however complex can be performed.