import pandas as pd

# Creating a dataframe:
df = pd.DataFrame(data=
                  {'col1': [1.0, 2.0],
                   'col2': [3.0, 4.0]})

# print('') is used to make printout nice with blank line
print('df + 10 ='); print(df + 10); print('')
print('df * 10 ='); print(df * 10); print('')

a = df.to_numpy()

print('a + 10 ='); print(a + 10); print('')
print('a * 10 ='); print(a * 10); print('')