turn it completely off then back on.
getch(); is used for unbuffered input. e.x: int main() { char num=0; printf("Press a keyboard button: "); num = getch(); //This brings in 1 character that the user pressed on the keyboard printf("\nYou pressed: %c", num); //This prints the character you pressed getchar(); // I am using getchar(); to stop the program from ending after pressing buttons return 0; } My input will be within the (). output: Press a keyboard button: (v) You pressed: v EOP //End of program I hope this has helped you!
It is the key marked: Num Lock. There should be a light showing on the keyboard when the Num Lock has been pressed and the numeric keypad can be used.
If you are on a computer and the number pad doesn't work then the num lock button might need to be pressed.
turn the "num lock" off.
Make sure your NUM LOCKS key is not pressed down.
unsigned binary_to_gray (unsigned num) { return num ^ (num >> 1); } unsigned gray_to_binary (unsigned num) { /* note: assumes num is no more than 32-bits in length */ num ^= (num >> 16); num ^= (num >> 8); num ^= (num >> 4); num ^= (num >> 2); num ^= (num >> 1); return num ; }
press num lk button
Hold ALT and press the key with the 9 inside the lock. (above the 7 key on the number pad.)
Press Fn. If you want to use the number pad on the keyboard on a laptop, press fn and then num lock and then the num lock again (maybe fn before, depends on the computer) to turn the numbers off. Hope this helps :)
from 20.00 o'clock to 4 o'clock
To turn on the number lock (Num Lock) on a Dell Latitude E5540, locate the "Num Lock" key on the keyboard, which is typically found in the top row of keys or as a secondary function on the "F11" key. Press the "Num Lock" key to activate it. You may see a light indicator on the key or keyboard itself confirming that Num Lock is enabled. If your keyboard has a numeric keypad, the numeric functions will now work.
num num num