def substitution(self, number, base, dest_base, no_digits_fractional_part):
operations = Operations()
if base < dest_base:
if ',' in number:
parts = number.split(',')
integer_part = parts[0]
decimal_part = parts[1]
else:
integer_part = number
decimal_part = ''
#transform integer part
p = 0
integer_result = ''
result = ''
while len(integer_part) > 0:
if p == 0:
result = integer_part[-1]
integer_result = result
else:
result = integer_part[-1]
for i in list(range(p)):
operations.mul(result,
self.get_numbers_inv()[base], dest_base)
result = operations.get_result()
operations.add(str(integer_result), str(result), dest_base)
integer_result = operations.get_result()
p = p + 1
integer_part = integer_part[:-1]
#transforms decimal part
p = 1
decimal_result = '0'
result = ''
while len(decimal_part) > 0:
result = decimal_part[0]
for i in range(no_digits_fractional_part):
result = result + '0'
for i in range(p):
operations.div(result,
self.get_numbers_inv()[base], dest_base)
result = operations.get_result()
operations.add(decimal_result, result, dest_base)
decimal_result = operations.get_result()
p = p + 1
decimal_part = decimal_part[1:]
if decimal_result == '0':
self.set_result(str(integer_result))
elif len(decimal_result) == no_digits_fractional_part:
#if decimal_result[0]=='0':
self.set_result(str(integer_result + ',' + decimal_result))
else:
current_decimal_result = decimal_result[
-no_digits_fractional_part:]
decimal_result = decimal_result[:-no_digits_fractional_part]
operations.add(decimal_result, integer_result, dest_base)
integer_result = operations.get_result()
self.set_result(
str(integer_result + ',' + current_decimal_result[1:]))
def test_addition(self):
test_operations=Operations()
test_operations.add('2', '2', 3)
assert(test_operations.get_result()=='11')
def test_addition3(self):
test_operations=Operations()
test_operations.add('AB0','F01', 16)
assert(test_operations.get_result()=='19B1')
def test_addition2(self):
test_operations=Operations()
test_operations.add('11', '11', 2)
assert(test_operations.get_result()=='110')