[Oberon] real math

[Hans Klaver]

>> 
>> "Floating-point numbers are only an approximation to the real numbers of
>> mathematics. As a consequence, computations involving floating-point values
>> are inexact because each operation may be subject to truncation. The
>> resulting problems have been investigated in detail, and are treated in
>> every text on numerical mathematics."
>> 
> 
> more to floating point arithmetic can be found in Vol. 2, Chapter 4.2 of 
> Donald Knuth's "The Art of Computer Programming".

Maybe for starters you should consult this website:
http://floating-point-gui.de

In case you do not know: Blackbox Component Builder has an excellent module "Integers" (in the System directory) for arbitrary precision integer arithmetic. See here: http://blackboxframework.org

Hans