class CalculatorLibrary(object):
def __init__(self):
self.calc = Calculator()
def calculate(self, input_a, input_b, operation):
if operation == "+":
return self.calc.add(input_a, input_b)
elif operation == "-":
return self.calc.sub(input_a, input_b)
elif operation == "*":
return self.calc.mul(input_a, input_b)
elif operation == "/":
return self.calc.div(input_a, input_b)
else:
raise ValueError("wrong operation")
def main():
print("Hello! Welcome~")
print("Please enter the kind of function you would like to use.")
print("Currently supported functions are: \n" +
list_to_string(FUNCTIONS_SUPPORTED))
sel = input("Select an option: ")
# Apply logic based on selection
if (sel == "add"):
print("Specify two numbers, a and b")
a = input("a: ")
b = input("b: ")
# Cast numbers to float via function, then add
res = Calculator.add(float(a), float(b))
print("Result: " + str(res))
elif (sel == "sub"):
print("Specify two numbers, a and b")
a = input("a: ")
b = input("b: ")
res = Calculator.sub(float(a), float(b))
print("Result " + str(res))
elif (sel == "mul"):
print("Specify two numbers, a and b")
a = input("a: ")
b = input("b: ")
res = Calculator.mul(float(a), float(b))
print("Result " + str(res))
elif (sel == "div"):
print("Specify two numbers, a and b")
a = input("a: ")
b = input("b: ")
res = Calculator.div(float(a), float(b))
print("Result " + str(res))
elif (sel == "power"):
print("Specify two numbers, a and b")
a = input("a: ")
b = input("b: ")
res = Calculator.power(float(a), float(b))
print("Result " + str(res))
else:
print("Function \"" + sel + "\" not implemented.")
from calc import Calculator from calc import Advanced_calculator my_calc = Calculator() print(my_calc.add(5,4)) print(my_calc.add(4,6)) print(my_calc.history) print(my_calc.result) my_calc.memory_save() print (my_calc.memory) print(my_calc.add(4,None)) print(my_calc.mul(5,4)) print(my_calc.div(7,6)) print(my_calc.sub(10,6)) print(my_calc.div(7,0)) print(my_calc.history) my_calc.clear_history() print(my_calc.history) my_calc.memory_save() print (my_calc.memory, " add") my_calc.clear_memory() print (my_calc.memory, " clear") print(my_calc.sub(10,15))
def test_mul(self):
print('Test mul(self, num1, num2) ')
calc = Calculator()
result = calc.mul(3, 6)
self.assertEqual(result, 18, 'Match expected value')
def test_mul(self):
calc = Calculator()
self.assertEqual(calc.mul(5, 2), 10)
#!/usr/bin/env python
from calc import Calculator
def assertAlmostEqual(a, b):
""" A function that tests the approximate equality of two floating point numbers. """
assert round(a - b, 7) == 0, "{} is not equal to {}.".format(a, b)
c1 = Calculator() # Create an instance of a calculator
c2 = Calculator(50) # Create another calculator, initialized with 50
# Test individual methods, and that the two instances properly
# track their own state.
c1.add(2)
assertAlmostEqual(c1.result(), 2)
c1.mul(4)
assertAlmostEqual(c1.result(), 8)
c2.add(50)
assertAlmostEqual(c2.result(), 100)
c1.div(8)
assertAlmostEqual(c1.result(), 1)
c1.sub(-3.)
assertAlmostEqual(c1.result(), 4)
c2.div(c1.result())
assertAlmostEqual(c2.result(), 25)
print("All tests passed! You have a working calculator!")
