def stdev():
list2 = input()
list2 = sorted(list2.split(","))
N = len(list2)
par = math_lib.sub(N, 1)
num = 0
for i in list2:
num = math_lib.add(num, int(i))
num2 = math_lib.div(num, N)
res = 0
for i in list2:
tmp = math_lib.pow(math_lib.sub(int(i), num2))
res = math_lib.add(res, tmp)
s = math_lib.div(res, par)
return math_lib.sqrt(s)
def test_sub(self):
numbers_sub_1 = [
24.567, -87.1, -38, -85, 1974, 348.5, 894, -67.1, 35, 5.5, 4, 10.4
]
numbers_sub_2 = [
-24.567, 87.1, 38, 85, -1974, -348.5, -894, 67.1, -35, -5.5, -4,
-10.4
]
for i in range(12):
self.assertEqual(
math_lib.sub(self.numbers_1[i], self.numbers_2[i]),
numbers_sub_1[i])
self.assertEqual(
math_lib.sub(self.numbers_2[i], self.numbers_1[i]),
numbers_sub_2[i])
def calcBinary(a, b, operator):
if operator == "+":
return math.add(a, b)
elif operator == "-":
return math.sub(a, b)
elif operator == "×":
return math.mul(a, b)
elif operator == "÷":
try:
return math.div(a, b)
except Exception as e:
return e
elif operator == "√":
try:
return math.root(b, a)
except Exception as e:
return e
elif operator == "^":
try:
return math.pow(a, b)
except Exception as e:
return e
elif operator == "%":
try:
return math.mod(a, b)
except Exception as e:
return e
def test_func_cotan(self):
self.assertEqual(math_lib.func_cotan(0), ValueError)
self.assertEqual(math_lib.func_cotan(30), 1.732051)
self.assertEqual(math_lib.func_cotan(45), 1)
self.assertEqual(math_lib.func_cotan(90), 0)
self.assertEqual(math_lib.func_cotan(180), ValueError)
# TESTING NUMBER
self.assertEqual(math_lib.func_cotan('a'), ValueError)
self.assertEqual(math_lib.fact("test"), ValueError)
self.assertEqual(math_lib.sub("test", "test"), ValueError)
def low_priority_op(result, temp, i):
"""Calculating low priority operations
Returns:
int: Counter
"""
if result[i] == '+':
if result[i + 1] == '-':
replace_binary(result, result[i + 1], i)
elif (i - 1) < 0 and is_float(result[i + 1]):
result.remove(result[i])
elif is_float(result[i - 1]) and is_float(result[i + 1]):
temp = math.add(float(result[i - 1]), float(result[i + 1]))
replace_ternary(result, temp, i)
i -= 1
elif not is_float(result[i - 1]) or not is_float(result[i + 1]):
set_err_msg(result, err_msg)
return 0
if result[i] == '-':
if result[i + 1] == '+':
replace_binary(result, result[i], i)
if (i - 1) < 0:
return 0
else:
return i
elif (i - 1) < 0 and is_float(result[i + 1]):
temp = -float(result[i + 1])
replace_binary(result, temp, i)
elif is_float(result[i - 1]) and is_float(result[i + 1]):
temp = math.sub(float(result[i - 1]), float(result[i + 1]))
replace_ternary(result, temp, i)
i -= 1
elif not is_float(result[i - 1]) or not is_float(result[i + 1]):
set_err_msg(result, err_msg)
return 0
return (i + 1)
import math_lib as ml
print('add 3 and 5')
print(ml.add(3,5))
print('subtract 12 from 34')
print(ml.sub(34,12))
print('multiply 2 and 90')
print(ml.mult(2,90))
print('divide 18 by 3')
print(ml.div(18,3))
print('divide 37 by 0')
print(ml.div(37,0))
def test_sub(self):
self.assertEqual(math_lib.sub(10, 5), 5)
self.assertEqual(math_lib.sub(-1, 1), -2)
self.assertEqual(math_lib.sub(-1, -1), 0)
def test_subtraction(self):
#basic function
self.assertEqual(math_lib.sub(456, 6), 450)
self.assertEqual(math_lib.sub(754298, 754298), 0)
self.assertEqual(math_lib.sub(4569823, 0), 4569823)
Richard Míček xmicek09
Date:
16.4.2020
"""
import math_lib as math
import fileinput
num_array = ''
count = 0
average = 0
summ = 0
for line in fileinput.input():
line.rstrip()
num_array += line
num_array = num_array.split('\n')
num_array = [int(i) for i in num_array]
for num in num_array:
average = math.add(average, num)
count = math.add(count, 1)
average = math.div(average, count)
for num in num_array:
summ = math.add(summ, math.exp(math.sub(num, average), 2))
deviation = math.ext(math.mul(math.div(1, (count - 1)), summ), 2)
print(deviation)