FLOAT PRECISSION

[mike V]

What is the precission with which floating point operations are performed ?
The following example shows an incorrect answer in the second case ?
How can this problem be addressed i.e. the apparent precission seems to be a 
sevre limitation to any scientific computation ?

Prelude> 1000.11 - 0.1
1000.01
Prelude> 10000.11 - 0.1
10000.0

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