Interact Exercise 01


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.html import widgets
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 [5]:
def print_sum(a, b):
    """Print the sum of the arguments a and 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 [6]:
interact(print_sum, a=(-10.,10.,.1), 


In [35]:
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 [20]:
def print_string(s, length=False):
    """Print the string s and optionally its length."""
    if length==True:

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 [21]:
interact(print_string, s="Hello World!", length=True);

Hello World!

In [49]:
assert True # leave this for grading the print_string exercise

In [ ]: