cought! the errors and fixed the thing with infinite and complex numbers. i hope XD

homework1/main.py

@@ -2,7 +2,7 @@ import math
 
 
 def input_float(text):
-    # check if the input can be converted to float to prevent errors
+    # check if the input can be converted to a float to prevent errors
     inp = input(text)
     try:
         float(inp)
@@ -21,19 +21,14 @@ def input_with_conditions(text, operator):
     # check if the input fits the conditions listed in the task, i.e.
     # H > 0, C >=1
     # since we'll need to divide by A I also added A != 0 to prevent the errors
-    error_msg = "The value doesn't fit the conditions, try again "
     value = input_float(text)
     if (operator == '>' and value <= 0) or (operator == '>=' and value < 1):
-        return input_with_conditions(error_msg, operator)
-    elif operator == '!=' and value <= 0:
-        error_msg = "Hey, sorry, we'll have to divide by A and get the square root of it, so all of the values less " \
-                    "or equal to 0 are unacceptable "
-        return input_with_conditions(error_msg, operator)
+        return input_with_conditions("The value doesn't fit the conditions, try again ", operator)
     return value
 
 
 def calculate_x(until):
-    # calculate x in the necessary points
+    # calculate x in the necessary point
     xx = a + h
     for i in range(1, until + 1):
         xx = xx + h * math.pow(c, i)
@@ -41,7 +36,12 @@ def calculate_x(until):
 
 
 def calculate_y(xx):
-    # calculate y according to the formula and return the (x, y) function in an array
+    # calculate y according to the formula
+    if xx < 0:
+        return 'complex number'
+    elif xx == 0:
+        return 'infinite'
+    else:
         yy = float(math.pow(xx, 2) + 20 * xx - 14) / math.sqrt(xx) - (1 + xx) / xx
         return round(yy, 3)
 
@@ -58,26 +58,28 @@ def print_table():
 
 
 # input all the values: A, H, C, YM
-a = input_with_conditions("Enter a starting value A = ", '!=')
+# a = input_with_conditions("Enter a starting value A = ", '!=')
+a = input_float("Enter a starting value A = ")
 h = input_with_conditions("Enter a step H = ", '>')
 c = input_with_conditions("Enter the step's coefficient C = ", '>=')
 ym = input_float("Enter function value upper limit YM = ")
 
 x = []
 y = []
-if calculate_y(a) <= ym:
+if calculate_y(a) == 'complex number' or calculate_y(a) == 'infinite' or calculate_y(a) <= ym:
     x.append(round(a, 3))
     y.append(calculate_y(a))
-if calculate_y(a + h) <= ym:
+if calculate_y(a + h) == 'complex number' or calculate_y(a + h) == 'infinite' or calculate_y(a + h) <= ym:
     x.append(round(a + h, 3))
     y.append(calculate_y(a + h))
 counter = 1
 while counter < 14:
+    if calculate_y(calculate_x(counter)) <= ym \
+            or calculate_y(calculate_x(counter)) == 'complex number' or calculate_y(calculate_x(counter)) == 'infinite':
         x.append(calculate_x(counter))
         y.append(calculate_y(calculate_x(counter)))
         counter += 1
-    if not y[len(y) - 1] <= ym:
-        y.remove(y[len(y) - 1])
+    else:
         break
 
 print_table()