def read_float_matrix(fid, rows, cols):
 return _unpack_matrix(fid, rows, cols, dtype='>f4', out_dtype=np.float32)

def read_float_matrix ( fid , rows , cols ) : return _unpack_matrix ( fid , rows , cols , dtype = '>f4' , out_dtype = np . float32 )
read 32bit float matrix from bti file .