np.arange function returns weird value. I don't know why : <pre><code>import numpy as np
a=np.arange(1e-10,2e-10,1e-11)
print(len(a))
b=np.arange(0.1,0.2,0.01)
print(len(b))
</code></pre>

<p>Value of a is 11 and value of b is 10. Why is that? I've known that arange func is the interval including start but excluding stop. </p>
