perform_math.py

import math


def basicOperations(text):
    text = text.replace("calculate", "")
    text = text.replace("what is", "")
    text = text.replace("value of", "")
    text = text.replace("what is the value of", "")
    text = text.replace("evaluate", "")
    text = text.replace("find the value of", "")
    text = text.replace("find", "")

    if 'root' in text:
        temp = text.rfind(' ')
        num = int(text[temp+1:])
        return round(math.sqrt(num), 2)

    text = text.replace('plus', '+')
    text = text.replace('minus', '-')
    text = text.replace('x', '*')
    text = text.replace('multiplied by', '*')
    text = text.replace('multiply', '*')
    text = text.replace('divided by', '/')
    text = text.replace('to the power of', '**')
    text = text.replace('to the power', '**')
    text = text.replace('power', '**')
    result = eval(text)
    return round(result, 2)


def bitwiseOperations(text):
	if 'right shift' in text:
		temp = text.rfind(' ')
		num = int(text[temp+1:])
		return num >> 1
	elif 'left shift' in text:
		temp = text.rfind(' ')
		num = int(text[temp+1:])
		return num << 1
	text = text.replace('and', '&')
	text = text.replace('or', '|')
	text = text.replace('not of', '~')
	text = text.replace('not', '~')
	text = text.replace('xor', '^')
	result = eval(text)
	return result


def conversions(text):
	temp = text.rfind(' ')
	num = int(text[temp+1:])
	if 'bin' in text:
		return eval('bin(num)')[2:]
	elif 'hex' in text:
		return eval('hex(num)')[2:]
	elif 'oct' in text:
		return eval('oct(num)')[2:]


def trigonometry(text):
	temp = text.replace('degree', '')
	temp = text.rfind(' ')
	deg = int(text[temp+1:])
	rad = (deg * math.pi) / 180
	if 'sin' in text:
		return round(math.sin(rad), 2)
	elif 'cos' in text:
		return round(math.cos(rad), 2)
	elif 'tan' in text:
		return round(math.tan(rad), 2)


def factorial(n):
	if n == 1 or n == 0:
		return 1
	else:
		return n*factorial(n-1)


def logFind(text):
	temp = text.rfind(' ')
	num = int(text[temp+1:])
	return round(math.log(num, 10), 2)


def isHaving(text, lst):
	for word in lst:
		if word in text:
			return True
	return False


def perform(text):
	text = text.replace('math', '')
	if "factorial" in text:
		return str(factorial(int(text[text.rfind(' ')+1:])))
	elif isHaving(text, ['sin', 'cos', 'tan']):
		return str(trigonometry(text))
	elif isHaving(text, ['bin', 'hex', 'oct']):
		return str(conversions(text))
	elif isHaving(text, ['shift', 'and', 'or', 'not']):
		return str(bitwiseOperations(text))
	elif 'log' in text:
		return str(logFind(text))
	else:
		return str(basicOperations(text))

# print(round(math.log(1,10),2))


if __name__ == "__main__":
	while(True):
		x = input("enter the text: ")
		if(x == 'exit'):
			break
		print(perform(x))