def append_vec():
print("Please enter a number.")
tmp = input_float()
if tmp in vec:
print("You've already entered this number. Please try another one.")
return append_vec()
else:
vec.append(tmp)
def temp_conv():
print("""Press C to convert from Fahrenheit to Celsius.
Press F to convert from Celsius to Fahrenheit.""")
unit = str(input()).upper()
if unit == "F":
print("""Your choice: F
Please enter the temperature in Fahrenheit:""")
fah = input_float()
cel = (fah - 32) * 5 / 9
print(f"The temperature in Celsius is {cel}")
elif unit == "C":
print("""Your choice: C
Please enter the temperature in Celsius:""")
cel = input_float()
fah = (cel * 9 / 5) + 32
print(f"The temperature in Fahrenheit is {fah}")
else:
return temp_conv()
def calc_bmi():
print("Press I for Imperial units or M for metric.")
syst = str(input()).upper()
if syst == "I":
print("Please enter your height (first feet, then inches).")
feet = input_float()
inches = input_float()
height = feet * 12.0 + inches
print("Please enter your weight (lb).")
weight = input_float()
bmi = weight / (height**2) * 703.0
print(f"Your BMI is {round(bmi, 1)}.")
return bmi
elif syst == "M":
print("Please enter your height (cm).")
height = input_float()
print("Please enter your weight (kg).")
weight = input_float()
bmi = weight / ((height/100.0)**2)
print(f"Your BMI is {round(bmi, 1)}.")
return bmi
else:
return calc_bmi()
# 12.
# Computing Simple Interest
from inputplus import input_float
def calc_simple_interest(principal, interest, years):
return principal * (1.0 + interest * years)
print("Enter the principal:")
user_principal = input_float()
print("Enter the rate of interest:")
user_interest = input_float() / 100.0
print("Enter the number of years:")
user_years = input_float()
for i in range(int(user_years) + 1):
end_amount = round(calc_simple_interest(user_principal, user_interest, i),
2)
print(
f"After {i} years at {user_interest * 100.0}%, the interest will be worth ${end_amount}."
)
if mx < i:
mx = i
return mx
def minimum(arr):
mn = arr[0]
for i in arr:
if mn > i:
mn = i
return mn
def average(arr):
return sum(arr) / len(arr)
print("Enter a number:")
usr_inp = input_float()
usr_vec = []
while usr_inp != "done":
usr_inp, usr_vec = inp_vec(usr_inp, usr_vec)
usr_inp = add_num()
print(f"""Numbers: {usr_vec}.
The average is {average(usr_vec)}.
The maximum is {maximum(usr_vec)}.
The minimum is {minimum(usr_vec)}.
The standard deviation is {stdev(usr_vec)}""")
# 26.
# Months to Pay Off a Credit Card
from inputplus import input_float
import math
def calc_months(balance, apr, mpayment):
rate_p = 1 + apr / 365.0
bp = math.ceil(100.0 * balance / mpayment) / 100.0
y = 1.0 + bp * (1.0 - rate_p**30)
dividend = math.log(y, 2)
divisor = math.log(rate_p, 2)
n_months = -1.0 / 30.0 * dividend / divisor
return n_months
print("What is your balance?")
user_balance = input_float()
print("What is the APR on the card (as percent)?")
user_apr = input_float() / 100.0
print("What is the monthly payment you can make?")
user_mpayment = input_float()
user_nmonths = math.ceil(calc_months(user_balance, user_apr, user_mpayment))
print(f"It will take you {user_nmonths} months to pay off this card.")
# 11.
# Currency Conversion
from inputplus import input_float
import math, inquirer
xr = {"EUR": 113.0, "USD": 89.0}
question = [
inquirer.List("currency_choice",
message="Please choose currency",
choices=["EUR", "USD"],
default="EUR")
]
answer = inquirer.prompt(question)
currency = answer["currency_choice"]
pair = "USD" if currency == "EUR" else "EUR"
print("How much money would you like to exchange?")
amount = input_float()
exchanged_amount = math.ceil(amount * xr[currency]) / 100
print(
f"{amount} {currency} at an exchange rate of {xr[currency]} is {exchanged_amount} {pair}."
)
# Comparing Numbers
from inputplus import input_float
vec = []
def append_vec():
print("Please enter a number.")
tmp = input_float()
if tmp in vec:
print("You've already entered this number. Please try another one.")
return append_vec()
else:
vec.append(tmp)
print("How many numbers do you want to compare?")
n = int(input_float())
while len(vec) < n:
append_vec()
maximum = vec[0]
for i in vec:
if i > maximum:
maximum = i
print(f"The largest number is {maximum}.")
tax_rate = {
"IL": {"empty": 0.08},
"ILLINOIS": {"empty": 0.08},
"WI": {
"EAU CLAIRE": 0.005,
"DUNN": 0.004
},
"WISCONSIN": {
"EAU CLAIRE": 0.005,
"DUNN": 0.004
}
}
print("What is the order amount?")
oa = input_float()
print("What state do you live in?")
state = str(input()).upper()
if state in ["WI", "WISCONSIN"]:
print("What county do you live in?")
county = str(input()).upper()
elif state in ["IL", "ILLINOIS"]:
county = "empty"
tax = math.ceil(100.0 * oa * tax_rate[state][county]) / 100.0
print(f"The tax is ${tax}.")
total = oa + tax
print(f"The total is ${total}.")