2023-11-15

CS1032/notes-2023-11-02

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+

CS1032/notes-2023-11-03

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+Pencil & eraser for final exam

CS1032/notes-2023-11-09

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+

CS1032/practical-2023-11-01/head.py

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+import sys, itertools
+
+def open_arg(_arg0, filename = "-"): # Default of - means stdin
+    if filename == "-":
+        return sys.stdin
+
+    return open(filename, 'r')
+
+def head(file):
+    for line in file.readlines()[:10]:
+        print(line, end = "")
+
+if __name__ == '__main__':
+    try:
+        file = open_arg(*sys.argv)
+        head(file)
+    except FileNotFoundError:
+        print("File not found!", file=sys.stderr)
+        sys.exit(1)
+    except:
+        print("Some other error occured", file=sys.stderr)

CS1032/practical-2023-11-01/tail.py

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+import sys, itertools
+
+def open_arg(_arg0, filename = "-"): # Default of - means stdin
+    if filename == "-":
+        return sys.stdin
+
+    return open(filename, 'r')
+
+def tail(file):
+    for line in file.readlines()[-10:]:
+        print(line, end = "")
+
+if __name__ == '__main__':
+    try:
+        file = open_arg(*sys.argv)
+        tail(file)
+    except FileNotFoundError:
+        print("File not found!", file=sys.stderr)
+        sys.exit(1)
+    except:
+        print("Some other error occured", file=sys.stderr)

CS1032/practical-2023-11-08/calc.py

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+# This function adds two numbers
+def add(x, y):
+    return x + y
+
+# This function subtracts two numbers
+def subtract(x, y):
+    return x - y
+
+# This function multiplies two numbers
+def multiply(x, y):
+    return x * y
+
+# This function divides two numbers
+def divide(x, y):
+    return x / y
+
+def avg(x, y):
+    return (x + y) / 2
+
+def sci(x, y):
+    return x * 10 ** y
+
+
+print("Select operation.")
+print("1.Add")
+print("2.Subtract")
+print("3.Multiply")
+print("4.Divide")
+print("5.Average")
+print("6.Scientific Notation")
+
+while True:
+    # take input from the user
+    choice = input("Enter choice(1/2/3/4/5/6): ")
+
+    # check if choice is one of the four options
+    if choice in ('1', '2', '3', '4', '5', '6'):
+        try:
+            num1 = float(input("Enter first number: "))
+            num2 = float(input("Enter second number: "))
+        except ValueError:
+            print("Invalid input. Please enter a number.")
+            continue
+
+        if choice == '1':
+            print(num1, "+", num2, "=", add(num1, num2))
+
+        elif choice == '2':
+            print(num1, "-", num2, "=", subtract(num1, num2))
+
+        elif choice == '3':
+            print(num1, "*", num2, "=", multiply(num1, num2))
+
+        elif choice == '4':
+            print(num1, "/", num2, "=", divide(num1, num2))
+
+        elif choice == '5':
+            print(f"avg({num1}, {num2})", "=", avg(num1, num2))
+
+        elif choice == '6':
+            print(f"{num1}e{num2}", "=", sci(num1, num2))
+        
+        # check if user wants another calculation
+        # break the while loop if answer is no
+        next_calculation = input("Let's do next calculation? (yes/no): ")
+        if next_calculation.lower().startswith('n'):
+          break
+    else:
+        print("Invalid Input")
+