kharioki

def mid_point(x,y)
	(x+y)/2.0
end
def square_root(x,e)
	if x==1;
		guess=1
	else
		lowest = 0
		highest = x
		guess = mid_point(lowest,highest)

kharioki

def mid_point(x,y)
	(x+y)/2.0
end
def square_root(x,e)
	if x == 1
		guess = 1
	else
		lowest = 0
		highest = x
		guess = mid_point(lowest,highest)

kharioki

def product_except?(d)
	e = []
    startvalue = 0
    endvalue = d.length 
    product = d.inject(1){|first,n| first * n}
    result = []
	while startvalue < endvalue
		result.push(product/ d[startvalue])
	startvalue = startvalue  + 1
	end

kharioki

def sort_mylist_asc(a):
  for my_number in range(len(a)-1,0,-1):
    for i in range(my_number):
      if a[i]>a[i+1]:
          temp = a[i]
          a[i] = a[i+1]
          a[i+1] = temp
  return a

def sort_mylist_desc(a):

kharioki

def sort_mylist_asc(a):
  for my_number in range(len(a)-1,0,-1):
    for i in range(my_number):
      if a[i]>a[i+1]:
          temp = a[i]
          a[i] = a[i+1]
          a[i+1] = temp
  return a

def second_places(a):

kharioki

def camel_snake(input):
	output = [input[0].lower()]
	for c in input[1:]:
		if c in ('ABCDEFGHIJKLMNOPQRSTUVWXYZ'):
			output.append('_')
			output.append(c.lower())
		else:
			output.append(c)
	return str.join('', output)

kharioki

#sort playlist
def sort_music_asc(a):
  i = 0
  m = a[i][1]
  for m in range(len(a)-1,0,-1):
    for i in range(m):
      if a[i][1]>a[i+1][1]:
          temp = a[i]
          a[i] = a[i+1]
          a[i+1] = temp

kharioki

a = [[1,2,4,5],[6,7,8,9],[10,11,12,13],[14,15,16,17]]
number = 17
def box_arr_num(a, number)
  length = a.length-1
  number = number
  (0..a.length).each do |i|
    if a[i][a.length-1] >= number
      (0..a.length).each do |j|
        if a[i][j] == number
            return i, j

kharioki

def time_sort(time):
  i = 0
  music = time[i][1]
  for music in range(len(time)-1,0,-1):
    for i in range(music):
      if time[i][1]>time[i+1][1]:
          clock = time[i]
          time[i] = time[i+1]
          time[i+1] = clock
  return time

kharioki

def simultaneous_eqn(eqns):
	a = eqns[0]
	b = eqns[1]
	c = eqns[2]

	x = float((-b - c) / a)

	return x

def two_unknown(eqns):