def single_prec(v):
return (-1)**int(v[0])*sum([int(v[i])*2**(8-i) for i in range(1,23)])
def double_prec(v):
return (-1)**int(v[0])*sum([int(v[i])*2**(11-i) for i in range(1,23)])
def IEEE(v): return (-1)^2 * 2^(e-1023) * 1.f