projects

Author: parz1val37

projects/Extracting letter and numbers.py

@@ -0,0 +1,45 @@
+Mixed = input("Enter mixed letters and numbers: ")
+
+def extract_from(x):
+    if len(Mixed)==0:
+        print("Nothing Entered")
+    else:
+        try:
+            letters = [letter for letter in x if letter.isalpha()]
+            if len(letters)!=0:
+                print(f"List of all the letters is: {letters}")
+
+            numbers = [number for number in x if number.isdigit()]
+            if len(numbers)!=0:
+                print(f"List of all the numbers is: {numbers}")
+            
+            others = [other for other in x if other.isdigit()==False and other.isalpha()==False]
+            if len(others)!=0:
+                print(f"Other Special characters is: {others}")
+        except Exception as e:
+            print(f"ERROR: {e}")
+
+extract_from(Mixed)
+print("\n-----*---*-----\n")
+#----- Further it can be modified to give unique letters, numbers or special characters or to give how many numbers, letters and special characters are present ----
+#--------- EXAMPLE  ----
+def count_char(x):
+    if len(x)==0:
+        return
+    else:
+        try:
+            letters = [letter for letter in x if letter.isalpha()]
+            if len(letters)!=0:
+                print(f"No of unique letters: {len(set(letters))}")
+
+            numbers = [number for number in x if number.isdigit()]
+            if len(numbers)!=0:
+                print(f"No of unique digits: {len(set(numbers))}")
+            
+            others = [other for other in x if other.isdigit()==False and other.isalpha()==False]
+            if len(others)!=0:
+                print(f"No of unique Special character: {len(set(others))}")
+        except Exception as e:
+            print(f"ERROR: {e}")
+
+count_char(Mixed)

projects/Fibonacci.py

@@ -0,0 +1,19 @@
+def fibonacci(n):
+    sequence = [0,1]
+
+    for _ in range(n-2):
+        sequence.append(sequence[-2] + sequence [-1])
+    return sequence
+
+try:
+    n = int(input("Upto how many digits you want the Fibonacci sequence: "))
+    if n<=0:
+        print("Enter a natural number.")
+    if n==1:
+        print("Fibonacci series of 1 digit is [0]")
+    if n==2:
+        print("Fibonacci series of 2 digit is [0,1]")
+    if n>2:
+        print(f"Fibonacci series of {n} digit is:\n{fibonacci(n)}")
+except Exception as e:
+    print(f"ERROR: {e}")

projects/Permutation.py

@@ -0,0 +1,16 @@
+import math
+print("Permutations of 'n' distinct objects taken 'r' at a time is given by:\nnPr = n!/(n-r)!, where \"!\" denotes the factorial.\n")
+
+try:
+    n = int(input("Enter the value of n (n>0): "))
+    r = int(input("Enter the value of r (0<=r<=n): "))
+    if n<=0 or r<0:
+        print("'n' should be greater than 0 and 'r' must be >=0")
+    elif r>n:
+        print("'r' can't be greater than 'n'")
+    else:
+        ans = (math.factorial(n))//(math.factorial(n-r))
+        print(f"\nPermutation of {n} distinct objects taken {r} at a time is: {ans}")
+
+except Exception as e:
+    print(f"ERROR: {e}")

projects/QR_generator.py

@@ -0,0 +1,25 @@
+import qrcode
+from qrcode.constants import ERROR_CORRECT_H
+
+
+data = "add any text, or link here"
+
+
+qr = qrcode.QRCode(
+    version=1,
+    error_correction=ERROR_CORRECT_H,
+    box_size=10,
+    border=4,
+)
+
+qr.add_data(data)
+qr.make(fit=True)
+
+img = qr.make_image(fill_color="black", back_color="white")
+img.save("qrcode.png")
+print("QR code saved as qrcode.png")
+
+
+print("\nSCAN ON YOUR OWN RISK:\n")
+
+qr.print_ascii(invert=True)   

projects/Solving_quadratic.py

@@ -0,0 +1,42 @@
+import math
+print("General form of quadratic is: ax^2 + bx + c, where (a!=0).")
+try:
+    a = float(input("Enter the value for a: "))
+    if a == 0:
+        print("a can't be equals to zero.")
+    else:
+        b = float(input("Enter the value for b: "))
+        c = float(input("Enter the value for c: "))
+        if c == 0:
+            print(f"The quadratic is: {a}x² {'+' if b>0 else '-' } {abs(b)}x")
+        elif b==0:
+            print(f"The quadratic is: {a}x² {'+' if c>0 else '-' } {abs(c)}")
+        else:
+            print(f"The quadratic is: {a}x² {'+' if b>0 else '-' } {abs(b)}x {'+' if c>0 else '-' } {abs(c)}")
+
+        d = b**2 - 4*a*c
+        
+        if d<0:
+            print("This quadratic have complex roots.")
+            if b==0:
+                imag = round(((math.sqrt(-d))/(2*a)), 2)
+                root1 = (f"i{imag}")
+                root2 = (f"-i{imag}") 
+                print(f"The roots of given quadratic are \'{root1}\' and \'{root2}\'.")
+            else:
+                real = round((-b)/(2*a), 2)
+                imag = round(((math.sqrt(-d))/(2*a)), 2)
+                root1 = (f"{real} + i{imag}")
+                root2 = (f"{real} - i{imag}") 
+                print(f"The roots of given quadratic are \'{root1}\' and \'{root2}\'.")
+        elif d == 0:
+            print("This quadratic have equal roots.")
+            print(f"Which is \'{round((-b/(2*a)), 2)}\'.")
+        
+        else:
+            print("This quadratic have two real and distinct roots.")
+            root1 = round((-b + math.sqrt(d))/(2*a), 2)
+            root2 = round((-b - math.sqrt(d))/(2*a), 2)
+            print(f"Which are \'{root1}\' and \'{root2}\'.")
+except Exception as e:
+    print(f"ERROR: {e}")