Day 10 of Angela Yu's Python bootcamp was about functions with outputs (using the return statement to exit a function and to return a value).
The main goal of today's project was to build a calculator that lets the user calculate two numbers by adding, subtracting, multiplying or dividing and then asking them if they want to continue calculating or start a new calculation. Here is the Python code:
import os
from art import logo
def cls(): # Cross-platform clear screen
os.system('cls' if os.name == 'nt' else 'clear')
# Add
def add(n1, n2):
return n1 + n2
# Subtract
def subtract(n1, n2):
return n1 - n2
# Multiply
def multiply(n1, n2):
return n1 * n2
# Divide
def divide(n1, n2):
return n1 / n2
def calculator():
print(logo)
operations = {
"+": add,
"-": subtract,
"*": multiply,
"/": divide
}
first_number = float(input("What's the first number? "))
second_number = float(input("What's the second number? "))
for sign in operations:
print(sign)
should_continue = True
while should_continue:
operation_sign = input("Pick an operation from the line above: ")
calculation_function = operations[operation_sign]
answer = calculation_function(first_number, second_number)
print(f"{first_number} {operation_sign} {second_number} = {answer}")
if input("Type 'y' to continue calculating with {answer} or type 'n' to start a new calculation: ") == "y":
first_number = answer
else:
should_continue = False
cls()
calculator()
calculator()
I will continue with Day 11 tomorrow.
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