Interact Exercise 01

Import


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

In [3]:
from IPython.html.widgets import interact, interactive, fixed
from IPython.display import display

Interact basics

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


In [20]:
def print_sum(a, 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 [24]:
interact(print_sum, a=(-10.,10.,0.1), b=(-8,8,2));


-0.09999999999999945

In [25]:
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 [38]:
def print_string(s, length=False):
    print(s)
    if length == True:
        print(length);

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 [40]:
interact(print_string, s="Hello World!", length = True);


Hello World!

In [34]:
assert True # leave this for grading the print_string exercise