def doEvaluate():
eva = Evaluate()
eva.eval()
class Operations:
position = 0
result = ''
memory = ''
def __init__(self, results, button=""):
self.results = results
self.button = button
self.evaluate = Evaluate()
def operation(self):
if self.button == 'x':
self.button = '*'
self.results.insert(1.0 + Operations.position, self.button)
Operations.position += 1
def calculate(self):
Operations.result = self.getResult()
result = self.evaluate.eval(Operations.result)
if (result is None):
self.setResult(Operations.result)
else:
self.setResult(result)
def delete_all(self):
self.results.delete(1.0, 'end')
def add_memory(self):
Operations.memory = self.results.get(1.0, 'end')
self.results.delete(1.0, 'end')
def display_memory(self):
self.results.insert(1.0 + (Operations.i / 10), Operations.memory)
def delete_memory(self):
Operations.memory = ''
def delete_last_digit(self):
Operations.result = self.getResult()
Operations.result = Operations.result[:-1]
self.setResult(Operations.result)
def power2(self):
Operations.result = self.getResult()
Operations.result = float(Operations.result) * float(Operations.result)
self.setResult(Operations.result)
def square_root(self):
Operations.result = self.getResult()
Operations.result = sqrt(float(Operations.result))
self.setResult(Operations.result)
def plus_minus(self):
Operations.result = self.getResult()
Operations.result = float(Operations.result) * (-1)
self.setResult(Operations.result)
def getResult(self):
result = self.results.get(1.0, 'end')
return result.strip()
def setResult(self, result):
self.results.delete(1.0, 'end')
self.results.insert(1.0, result)
