input in matlab
x = input(prompt) displays the text in prompt and waits for the user to input a value and press the Return key. The user can enter expressions, like pi/4 or rand(3), and can use variables in the workspace. If the user presses the Return key without entering anything, then input returns an empty matrix. If the user enters an invalid expression at the prompt, then MATLAB displays the relevant error message, and then redisplays the prompt. str = input(prompt,'s') returns the entered text, without evaluating the input as an expression. you can further read the documentation by executing the following command in the command window doc input
