vladpenziy13

int input(TComplex& a, TComplex& b, TVect& first, TVect& second, float& one )
{

import math
a_n_prev = x
for i in range(2, n):
    a_n = 3 + 1/(2**n) * math.pow(math.sin(a_n_prev - x), 2) #a_n_prev = a_n-1
    print(a_n)
    a_n_prev = a_n

$url = 'https://api.privatbank.ua/p24api/pubinfo?exchange&json&coursid=11';
$json_response = file_get_contents($url);
$response = json_decode($json_response,true);
$dollarcost = $response[0]['buy'];
 echo $dollarcost;

foreach ($response as $item){
        if ($item->ccy == 'USD'){
            echo $item->buy;
            echo $item->sale;
        }
    }