Update main.py

main.py

@@ -68,9 +68,69 @@ def quadsolve():
     elif printed != True:
       print("\nSolution 1:",x1)
       print("Solution 2:",x2)
+
+  def slopeint():
+    import re
+    yint = ""
+    eq = input("Enter two points (ex. (1,-1),(2,-1) ): ")
+    eq = eq.split(",")
+    point1 = re.sub("[^0-9.-]","",eq[0])
+    point2 = re.sub("[^0-9.-]","",eq[1])
+    point3 = re.sub("[^0-9.-]","",eq[2])
+    point4 = re.sub("[^0-9.-]","",eq[3])
+    rise = float(point4) - float(point2)
+    run = float(point3) - float(point1)
+    if rise/run == 1.0:
+      slope = 1
+      calc = 0
+    elif rise/run == -1.0:
+      slope = -1
+      calc = 0
+    else:
+      slope = rise/run
+      calc = 1
+    yint =  [float(point1),float(point2)]
+    if calc == 0:
+      if float(point1) != 0:
+        yint[0] -= float(point1)
+        yint[1] -= float(point1)
+    elif calc == 1:
+      start = [0,0]
+      for i in range(5):
+        start[1] -= 0.01
+        slope2 = float(point3) - start[0]/float(point4) - start[1]
+        if slope == slope2:
+          break
+        slope2 = -1*slope2
+        if slope == slope2:
+          break
+        slope2 = -1*slope2
+    if yint == [0.0,0.0]:
+      if calc == 0:
+        print(f"y = {slope}x")
+      elif run == -1.0:
+        print(f"y = {-1*rise}x")
+      else:
+        print(f"y = {rise}/{run}x")
+    elif calc == 0:
+      if yint[1] > 0:
+        print(f"y = {slope}x + {yint[1]}")
+      elif yint[1] < 0:
+        print(f"y = {slope}x {yint[1]}")
+    elif run == -1.0:
+      if yint[1] > 0:
+        print(f"y = {-1*rise}x + {yint[1]}")
+      elif yint[1] < 0:
+        print(f"y = {-1*rise}x {yint[1]}")
+    else:
+      if yint[1] > 0:
+        print(f"y = {rise}/{run}x + {yint[1]}")
+      elif yint[1] < 0:
+        print(f"y = {rise}/{run}x {yint[1]}")
 
 if "__name__" == "__eqsolvecarlover101__":
   equation.quadsolve()
+  equation.slopeint()
   equation.commands()
 
 os.system("clear")