NLed questions

• How to prevent users from inputting letters or numbers?
• Algorithm to find the 'possible' combinations of variables with constraints in Matlab?
• Create a log from Ping command in OSX Terminal [closed]
• Print in Command Window without 'ans = ' in matlab?
• Create a basic matrix in C (input by user !)
• How to break an infinite for(;;) loop in C?
• How to create an Apple Script that runs a Terminal command?
• How do I edit the axes of an image in MATLAB to reverse the direction?
• How to skip a line when fscanning a text file?

NLed answers