Done >_<

homework1/main.py

+import math
+
+
+def input_float(text):
+    # check if the input can be converted to float to prevent errors
+    inp = input(text)
+    try:
+        float(inp)
+    except ValueError:
+        return input_float(text)
+    return float(inp)
+
+
+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) or (operator == '!=' and value == 0):
+        return input_with_conditions(error_msg, operator)
+    return value
+
+
+def calculate_x(until):
+    # calculate x in the necessary points
+    xx = a + h
+    for i in range(1, until+1):
+        xx = xx + h*math.pow(c, i)
+    return round(xx, 3)
+
+
+def calculate_y(xx):
+    # calculate y according to the formula and return the (x, y) function in an array
+    yy = float(math.pow(xx, 2) + 20 * xx - 14) / math.sqrt(xx) - (1 + xx) / xx
+    return round(yy, 3)
+
+
+def print_table():
+    # print the data in a table
+    titles = ['x', 'y']
+    data = [titles] + list(zip(x, y))
+    for i, d in enumerate(data):
+        line = '|'.join(str(x).ljust(12) for x in d)
+        print(line)
+        if i == 0:
+            print('-' * len(line))
+
+
+# input all the values: A, H, C, YM
+a = input_with_conditions("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 = []
+x.append(round(a, 3))
+y.append(calculate_y(a))
+x.append(round(a + h, 3))
+y.append(calculate_y(a + h))
+counter = 1
+while counter < 14:
+    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])
+        break
+
+print_table()