[Help-gsl] Help...

[FERNANDO NUÑEZ CORREAS]

Hi all. My name is Fernando and i like programing aplications in c. Now
i find this libraries and i would like do one aplication that integrate
some functions. This aplication receive by line command one function,
for example, 
>> calc sin(x) 1 2
1 and 2 are the limits.
But i have one problem, in argv[1] will be the char array sin(x), and
this is the question, Can i translate a constant char array in
gsl_function????

Thank you!.