print('hi')
import ipywidgets as widgets
slider = widgets.FloatSlider(description='x')
text = widgets.FloatText(disabled=True, description='$x^2$')
text.disabled
def compute(*ignore):
text.value = str(slider.value**2)
slider.observe(compute, 'value')
slider.value = 14
widgets.VBox([slider, text])
print('voila')
1+2