[fpc-devel] Math and numlib

[Werner Pamler]

Hi everybody - my first post here...

At the moment I am spending some time with fpc's numlib and writing a 
wrapper for a more versatile fitting procedure. Are there any problems 
to add the unit math to the uses clause of some numlib units? I want to 
use the value NaN (not-a-number) which is defined in numlib, but there 
is no way to check whether a value is "equal" to NaN. In math, however, 
there is a function IsNaN(). And my feeling is that these special 
numbers NaN and Infinity are implemented in math in a more general way 
than in numlib. An idea would be to remove NaN and Infinity from the 
numlib unit "typ" to replace them by the math values.

Werner