Interact Exercise 01

Import


In [1]:
%matplotlib inline
from matplotlib import pyplot as plt
import numpy as np

In [2]:
from IPython.html.widgets import interact, interactive, fixed
from IPython.display import display


:0: FutureWarning: IPython widgets are experimental and may change in the future.

Interact basics

Write a print_sum function that prints the sum of its arguments a and b.


In [3]:
def print_sum(a, b):
    """Print the sum of the arguments a and b."""
    print(a+b)

Use the interact function to interact with the print_sum function.

  • a should be a floating point slider over the interval [-10., 10.] with step sizes of 0.1
  • b should be an integer slider the interval [-8, 8] with step sizes of 2.

In [4]:
interact(print_sum, a=(-10,10,0.1),b=(-8,8,2))


9.7

In [ ]:
assert True # leave this for grading the print_sum exercise

Write a function named print_string that prints a string and additionally prints the length of that string if a boolean parameter is True.


In [5]:
def print_string(s, length=False):
    """Print the string s and optionally its length."""
    print(s)
    if length==True:
        print(len(s))

Use the interact function to interact with the print_string function.

  • s should be a textbox with the initial value "Hello World!".
  • length should be a checkbox with an initial value of True.

In [13]:
interact(print_string, s="Hello World!", length=True)


Hello World!
12
Out[13]:
<function __main__.print_string>

In [ ]:
assert True # leave this for grading the print_string exercise