[fpc-devel] patch to make math.pp more D7 compatible

[Burkhard Carstens]

Tha attached patch changes the statistic functions (sum, mean, stddev 
etc.) to expect "array of double" instead of "array of float". 
For most of the functions, I left the result values of type float as in 
D7, they are also type extended. Only for minvalue and maxvalue, I 
changed the result also to double, because it doesn't make sense to 
have higher precision here and D7 does the same.

This changes might be problematic on platforms where double is not 
supported (if any), but as there are other functions using double in 
math.pp, I didn't care about this.

Regards
 Burkhard
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