1. import matplotlib.pyplot as plt import numpy as np x = np.arange(1, 11) y1 = np.array([i*5 for i in x]) y2 = np.array([2**(i-1) for i in x]) plt.plot(x, y1, label='Add 5') plt.plot(x, y2, label='double') plt.xlabel("Days") plt.ylabel("Amount of money made") plt.title("double money vs + 5 every day") plt.show()

1. import random import numpy as np scores = [[random.randint(0, 5) for i in range(7)] for j in range(5)] print(f"{scores}\n") scores = np.sort(scores, 0) print(f"{scores}\n") scores = np.vsplit(scores, 5) print(scores[2]) 2. import numpy as np rng = np.random.default_rng() cards = np.array([rng.integers(1, 10, 12, int, True) for i in range(2)]) print(f"{cards}\n") cards = cards.reshape(3, 8) print(f"{cards}\n") rng.shuffle(cards, 1) print(f"Jason:{cards[0]}\nDamian:{cards[1]}\nTim:{cards[2]}\n")

import math class Point: def __init__(self, x, y): self.x = x self.y = y def ToString(self): return "(" + str(self.x) + ", " + str(self.y) + ")" def translate(self, movex, movey): self.x = self.x + movex self.y = self.y + movey def dist(self, p): return math.sqrt((p.x - self.x)**2 + (p.y - self.y)**2) p1 = Point(3, 5) p1.translate(4, 10) p2 = Point(2,3) dist = p1.dist(p2) print(f"dist from {p1.ToString()} to {p2.ToString()} is {dist}")

class vehicle: def __init__(self, make, model): self.make = make self.model = model self.mileage = 0 def displayInfo(self): print(f" make {self.make} model {self.model} mileage {self.mileage}") def addMileage(self, miles): self.mileage += miles class bus(vehicle): def __init__(self, make, model, fare): self.fare = fare vehicle.__init__(self, make, model) def calculateFare(self, trips): print("fare = ", self.fare * trips) def displayInfo(self): print(f" make {self.make} model {self.model} mileage {self.mileage} fare {self.fare}") abus = bus("toyota", "model 5", 2.5) abus.addMileage(5) abus.calculateFare(4) abus.displayInfo() abus.addMileage(8) abus.displayInfo()

#1 def function(start, diff, n): print(f"start:{start}, diff:{diff}, n:{n}") if n == 0: return start start = start - 1 + diff return function(start, diff, n-1) print(function(10, 3, 4)) #2 x = lambda a,b:a==b**2 print(x(4,2)) print(x(9,3)) print(x(10,5))

1. import random l = [] for i in range(0, 4): x = [] for j in range(0, 4): x.append(random.uniform(0.0, 1.0) * 10 + 10) l.append(x) for i in range(0, 4): for j in range(0, 4): print(f"{l[i][j]} ", end="") print("\n") 2. import random number = 30 + random.randint(0, 21) ship_pos = [] for i in range(0, number): pos = [] for j in range(0, 3): pos.append(random.randint(-5000, 5000)) ship_pos.append(pos) i = 1 for ship in ship_pos: print(f"ship {i} x: {ship[0]}, y: {ship[1]} z: {ship[2]}") i = i + 1

1. shirts = ["shirt red", "shirt blue", "shirt yellow"] pants = ["pants blue", "pants yellow", "pants red", "pants green"] for i in shirts: for b in pants: print(f"outfit {i}, {b}") 2. str = "Brian, the officer in charge; Mark, the chef; Dexter, my dog; and Petunia, my cat" x = str.split("; ", 2) for substr in x: print(f"index of first t in '{substr}' is {substr.find('t')}") print(f"index of first x in '{substr}' is {substr.find('x')}") print(f"index of first z in '{substr}' is {substr.find('z')}\n")

1. numbers = [2, 6, 8, 11, 16, 20, 23, 27] for i in numbers: if i % 3 == 0: print(i) for i in range(0, len(numbers)): numbers[i] -= 2 if numbers[i] % 3 == 0: print(numbers[i]) 2. numbers = [x**(1/2) for x in range(0, 11)] print(numbers) 3. for g in range(0, 3): for h in range(0,3): print(f"[{g}, {h}]\t", end="") print("\n")

1. l = ord('A') for i in range(1, 27): print(chr(l)*i) l = l+1 2. l = ord('A') for i in range(1, 27): for j in range(0, i): print(chr(l), end=" ") l = l + 1 if (l > ord('Z')): break print("") if (l > ord('Z')): break print("") 3. numbers = [4, 5, 61, 89, 74, 24, 9, 7, 80] result = 1 for i in numbers: result = i * result print(result) numbers.append(45) numbers.remove(5) result = 1 for i in numbers: result = i * result print(result)

1. number = 0 while (number == 50): temp = number if temp % 2 == 0: number += 3 if temp % 3 == 0: number += 5 if temp % 5 == 0: number += 7 if temp % 2 != 0 and temp % 3 != 0 and temp % 5 != 0: number += 1 2. string = "My name is Ethan Xiong" newstring = "" for i in range(0, len(string)): newstring = newstring + string[len(string) - i - 1] print(newstring) 3. for i in range(1, 51): if i % 4 != 0: print(i)

1a. != 1b. > 1c. !=, > 2a. True 2b. True 3. grade = int(input("input grade between 0 and 100: ")) if grade >= 90 and grade <= 100: print("A") elif grade < 90 and grade >= 80: print("B") elif grade < 80 and grade >= 70: print("C") elif grade < 70 and grade >= 60: print("D") else: print("F")

1. feet, inches = input("Enter feet and inches: ").split() centimeters = 2.54 *(int(feet) * 12 + int(inches)) print(f"{feet} feet and {inches} inches = {centimeters} centimeters" ) 2. a. SyntaxError: invalid character in identifier b. 32.0 c. 451 d.4447 e. False is the opposite of True

int ex: 1,2,3 string ex: "ethan", "box", "lamp" float ex: 9.23, 5.24, 7.27 boolean ex: true, false name = "ethan" grade = "7th" color = "orange" favorite sport = "volleyball" print (f'{name} is in {grade} and his favorite color is {color}, his favorite sport is {favorite sport}')