[Help-gsl] logic error logarithms

[yperez_riverol (sent by Nabble.com)]

I have a big quetions. 

I want calculate logarithms base 2 of x.
for this my code is:

result = (gsl_sf_log(x)/gsl_sf_log(2));

when x=100 the logic result=2, but the program show me 6.

Please aswer...

Thanks...  

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