This is a test.
$$x_{1,2} = \frac{-b\pm\sqrt{b^2-4ac}}{2a}$$import numpy as np
import nbinteract as nbi
def normal(mean, sd):
'''Returns 1000 points drawn at random fron N(mean, sd)'''
return np.random.normal(mean, sd, 1000)
# Pass in the ‘normal‘ function and let user change mean and sd.
# Whenever the user interacts with the sliders, the
# ‘normal‘ function is called and the returned data are plotted.
nbi.hist(normal, mean=(0, 10), sd=(0, 2.0))
VBox(children=(interactive(children=(IntSlider(value=5, description='mean', max=10), FloatSlider(value=1.0, de…