The gsl manual only mentioned that the floating point data can be represented by "gsl_vector_float" or "gsl_matrix_float", but it doesn't provide the methods to operate on these float gsl data. It even doesn't say how to allocate memory for it, and I tried the following, which doesn't work:
gsl_vector_float * v = gsl_vector_alloc(100);
Am I missing some separate manual?