... App Storeã Wi-FiWi-Fi settings determine whether iPhone uses local Wi-Fi networks to connect to the Internet. If no Wi-Fi networks are available, or you’ve turned Wi-Fi o, then iPhone connects ... (sin, cos, tan, sinh, cosh, and tanh) to their inverse functions (sin -1 , cos -1 , tan -1 , sinh -1 , cosh -1 , and tanh -1 ). It also changes ln to log2, and ex to 2x. Tap 2nd again to ... a cellular data network connection.Turn Wi-Fi on or o: Choose Wi-Fi and turn Wi-Fi on or o.Join a Wi-Fi network: Choose Wi-Fi, wait a moment as iPhone detects networks in range, then select...