Interact Exercise 01

Import



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%matplotlib inline
from matplotlib import pyplot as plt
import numpy as np



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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.



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def print_sum(a, b):
    """Print the sum of the arguments a and b."""
    c=a+b
    print (c)#gives back the variable c

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.



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interact(print_sum,a=[-10,10,.1],b=[-8,8,2]);









    



-0.09999999999999945



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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.



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



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interact(print_string,s="Hello World!",length=True);#makes it interactive and makes it so the string can change









    



Hello World! 12



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assert True # leave this for grading the print_string exercise